{"title":"Discontinued and Legacy Products","description":"\u003cp\u003eThis particular part of the website is dedicated to discontinued products.  It will serve as an information section as none of products are currently in production.  Thank you for taking your time to look around.\u003c\/p\u003e\n\u003c!----\u003e","products":[{"product_id":"for-celestron-9-25-sct-black-finish-aluminum","title":"Astrozap For Celestron 9.25\" SCT, Texture Black Finish Aluminum","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"319\" data-end=\"399\" class=\"\"\u003eAstroZap Aluminum Dew Shield for Celestron 9.25\" SCT – Textured Black Finish\u003c\/h3\u003e\n\u003cp data-start=\"401\" data-end=\"785\" class=\"\"\u003eThe \u003cstrong data-start=\"405\" data-end=\"428\"\u003eCelestron 9.25\" SCT\u003c\/strong\u003e is a legend among visual observers and planetary imagers, known for its sharp optics and unique focal geometry. But all that precision is vulnerable when dew rolls in. The \u003cstrong data-start=\"601\" data-end=\"633\"\u003eAstroZap Aluminum Dew Shield\u003c\/strong\u003e, finished in a durable \u003cstrong data-start=\"657\" data-end=\"687\"\u003etextured black powder coat\u003c\/strong\u003e, offers a rugged and stylish line of defense—built to match the performance pedigree of your OTA.\u003c\/p\u003e\n\u003cp data-start=\"787\" data-end=\"1079\" class=\"\"\u003eConstructed from \u003cstrong data-start=\"804\" data-end=\"838\"\u003elightweight yet rigid aluminum\u003c\/strong\u003e, this dew shield won’t bend, sag, or lose its shape like flexible models. The interior is lined with \u003cstrong data-start=\"940\" data-end=\"954\"\u003eblack felt\u003c\/strong\u003e to absorb stray light and reduce radiative cooling at the corrector plate, helping delay dew formation and improve contrast.\u003c\/p\u003e\n\u003cp data-start=\"1081\" data-end=\"1397\" class=\"\"\u003eDesigned to fit \u003cstrong data-start=\"1097\" data-end=\"1134\"\u003eCelestron 9.25\" SCT optical tubes\u003c\/strong\u003e, this shield installs easily using a \u003cstrong data-start=\"1172\" data-end=\"1205\"\u003eVelcro-backed fastening strip\u003c\/strong\u003e, providing a snug, secure fit with zero tools required. It’s the perfect upgrade for observers who demand durability and performance, whether in the backyard or a permanent observatory setup.\u003c\/p\u003e\n\u003ch3 data-start=\"1399\" data-end=\"1412\" class=\"\"\u003eFeatures:\u003c\/h3\u003e\n\u003cul data-start=\"1413\" data-end=\"1821\"\u003e\n\u003cli data-start=\"1413\" data-end=\"1479\" class=\"\"\u003e\n\u003cp data-start=\"1415\" data-end=\"1479\" class=\"\"\u003eCustom fit for \u003cstrong data-start=\"1430\" data-end=\"1479\"\u003eCelestron 9.25\" Schmidt-Cassegrain Telescopes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1480\" data-end=\"1557\" class=\"\"\u003e\n\u003cp data-start=\"1482\" data-end=\"1557\" class=\"\"\u003eMade from \u003cstrong data-start=\"1492\" data-end=\"1510\"\u003erigid aluminum\u003c\/strong\u003e with a \u003cstrong data-start=\"1518\" data-end=\"1557\"\u003etextured black powder-coated finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1628\" class=\"\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1628\" class=\"\"\u003e\u003cstrong data-start=\"1560\" data-end=\"1583\"\u003eFelt-lined interior\u003c\/strong\u003e blocks ambient light and slows dew formation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1629\" data-end=\"1687\" class=\"\"\u003e\n\u003cp data-start=\"1631\" data-end=\"1687\" class=\"\"\u003e\u003cstrong data-start=\"1631\" data-end=\"1649\"\u003eVelcro closure\u003c\/strong\u003e ensures quick, tool-free installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1688\" data-end=\"1751\" class=\"\"\u003e\n\u003cp data-start=\"1690\" data-end=\"1751\" class=\"\"\u003eDurable and sag-resistant—ideal for long-term or outreach use\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1752\" data-end=\"1821\" class=\"\"\u003e\n\u003cp data-start=\"1754\" data-end=\"1821\" class=\"\"\u003eImproves optical contrast and keeps your corrector plate dry longer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1823\" data-end=\"1841\" class=\"\"\u003eObserving Tip:\u003c\/h3\u003e\n\u003cp data-start=\"1842\" data-end=\"2099\" class=\"\"\u003eThe 9.25\" SCT offers a unique sweet spot in the Celestron lineup—great for planetary imaging, but still light enough to travel. This aluminum dew shield adds both performance and peace of mind, especially when observing in unpredictable or humid conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Astrozap","offers":[{"title":"Default Title","offer_id":40221633708105,"sku":"1969BK","price":155.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/3574_1.jpg?v=1662966690"},{"product_id":"for-celestron-14-sct-black-finish-aluminum","title":"Astrozap For Celestron 14\" SCT, Texture Black Finish Aluminum","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"263\" data-end=\"341\" class=\"\"\u003eAstroZap Aluminum Dew Shield for Celestron 14\" SCT – Textured Black Finish\u003c\/h3\u003e\n\u003cp data-start=\"343\" data-end=\"697\" class=\"\"\u003eA \u003cstrong data-start=\"345\" data-end=\"366\"\u003eCelestron 14\" SCT\u003c\/strong\u003e isn’t just a telescope—it’s a light-hungry leviathan. But that massive corrector plate is also a wide-open welcome mat for dew and ambient glare. The \u003cstrong data-start=\"517\" data-end=\"549\"\u003eAstroZap Aluminum Dew Shield\u003c\/strong\u003e, finished in a sleek \u003cstrong data-start=\"571\" data-end=\"601\"\u003etextured black powder coat\u003c\/strong\u003e, gives your 14\" SCT the observatory-grade protection it needs to perform at its full potential.\u003c\/p\u003e\n\u003cp data-start=\"699\" data-end=\"1012\" class=\"\"\u003eCrafted from \u003cstrong data-start=\"712\" data-end=\"743\"\u003erigid, lightweight aluminum\u003c\/strong\u003e, this dew shield maintains its form over time—no sagging, warping, or curling like flexible models. The \u003cstrong data-start=\"848\" data-end=\"877\"\u003eblack felt-lined interior\u003c\/strong\u003e absorbs stray light and slows radiative cooling, helping keep your corrector plate fog-free during long observing or imaging sessions.\u003c\/p\u003e\n\u003cp data-start=\"1014\" data-end=\"1338\" class=\"\"\u003eDesigned specifically for \u003cstrong data-start=\"1040\" data-end=\"1090\"\u003eCelestron 14\" Schmidt-Cassegrain optical tubes\u003c\/strong\u003e, including EdgeHD and non-Edge models, it installs easily using a \u003cstrong data-start=\"1157\" data-end=\"1188\"\u003eVelcro-backed closure strip\u003c\/strong\u003e for a secure, tool-free fit. Whether you’re in an observatory, under a dark sky, or just fighting your backyard humidity, this shield means business.\u003c\/p\u003e\n\u003ch3 data-start=\"1340\" data-end=\"1353\" class=\"\"\u003eFeatures:\u003c\/h3\u003e\n\u003cul data-start=\"1354\" data-end=\"1778\"\u003e\n\u003cli data-start=\"1354\" data-end=\"1421\" class=\"\"\u003e\n\u003cp data-start=\"1356\" data-end=\"1421\" class=\"\"\u003eFits \u003cstrong data-start=\"1361\" data-end=\"1383\"\u003eCelestron 14\" SCTs\u003c\/strong\u003e, including EdgeHD and standard models\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1422\" data-end=\"1502\" class=\"\"\u003e\n\u003cp data-start=\"1424\" data-end=\"1502\" class=\"\"\u003e\u003cstrong data-start=\"1424\" data-end=\"1447\"\u003eRigid aluminum body\u003c\/strong\u003e with a durable \u003cstrong data-start=\"1463\" data-end=\"1502\"\u003etextured black powder-coated finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1503\" data-end=\"1566\" class=\"\"\u003e\n\u003cp data-start=\"1505\" data-end=\"1566\" class=\"\"\u003e\u003cstrong data-start=\"1505\" data-end=\"1528\"\u003eFelt-lined interior\u003c\/strong\u003e reduces dew and boosts image contrast\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1567\" data-end=\"1640\" class=\"\"\u003e\n\u003cp data-start=\"1569\" data-end=\"1640\" class=\"\"\u003e\u003cstrong data-start=\"1569\" data-end=\"1587\"\u003eVelcro closure\u003c\/strong\u003e for secure, fast installation with no tools required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1641\" data-end=\"1717\" class=\"\"\u003e\n\u003cp data-start=\"1643\" data-end=\"1717\" class=\"\"\u003eExcellent for \u003cstrong data-start=\"1657\" data-end=\"1677\"\u003epermanent setups\u003c\/strong\u003e, public outreach, and long imaging runs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1718\" data-end=\"1778\" class=\"\"\u003e\n\u003cp data-start=\"1720\" data-end=\"1778\" class=\"\"\u003eBlocks ambient light and protects against moisture buildup\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1780\" data-end=\"1798\" class=\"\"\u003eObserving Tip:\u003c\/h3\u003e\n\u003cp data-start=\"1799\" data-end=\"2053\" class=\"\"\u003eOn a scope this large, dew is more than a nuisance—it’s a shutdown. A rigid aluminum dew shield not only extends your observing window, but also adds a level of physical protection around the front end of your OTA, keeping optics safe and contrast sharp.\u003c\/p\u003e","brand":"Astrozap","offers":[{"title":"Default Title","offer_id":40221633773641,"sku":"1964BK","price":245.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/3603_1.jpg?v=1662966692"},{"product_id":"binovue-straight-through-bino-viewer-w-2x-image-amplifier","title":"TeleVue BinoVue Straight-Through Binoviewer w\/2x Image Amplifier","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis product has been discontinued and is no longer for sale.  This is here for informational purposes only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA binocular viewer, like this BinoVue, makes for a spectacular viewing experience - of the Moon, planets, star clusters, double stars, and more. You see up to 40% more detail when you use both eyes to observe, compared with single eye viewing. Your brain interprets the two images to give an illusion of depth, an almost three-dimensional quality to the view, even though the image is not true stereo. In addition, it is simply more comfortable to use two eyes to view, rather than squinting through a single eyepiece.\u003c\/p\u003e\n\u003cp\u003eThis straight-through binocular viewer uses paired 1.25\" eyepieces (not supplied). It is designed to fit directly into the focuser of reflectors, and into the star diagonal of refractors and catadioptric scopes for more comfortable viewing at the zenith. Because of its long 5.1\" internal light path, it includes a 2x image amplifier. This is used as a transfer lens to bring the image back to the eyepieces when used with reflectors and refractors (which usually do not have enough back focus to handle the long light path). This results in a 2x magnification boost, so 32mm eyepieces in the BinoVue have the same magnification as 16mm eyepieces used normally. Keep this 2x magnification in mind when choosing eyepieces to use with the BinoVue. Catadioptric scopes (Schmidt-Cassegrains and Maksutov-Cassegrains) usually have enough available back focus, and the image amplifier should be removed with these scopes. However, the BinoVue, even with the image amplifier removed, still provides about a 25% increase in the effective focal length of a catadioptric scope. Some ghosting may be visible when bright objects are just outside the field in this configuration, but careful eye positioning can minimize this effect.\u003c\/p\u003e\n\u003cp\u003eEyepieces should be of identical make and focal length for best results. Tightening the knurled rings around the eyepiece holders clamps internal compression rings onto the eyepieces to hold them in place. There is no separate diopter adjustment to match the eyepieces to your individual eyesight, so any eyepiece adjustments need to be made by loosening the compression ring on one eyepiece, sliding the eyepiece in or out until its focus matches that of the other eyepiece, and retightening the compression ring.\u003c\/p\u003e\n\u003cp\u003eThe BinoVue has a 1.25\" nosepiece. If used in a 2\" diagonal with an optional 2\" to 1.25\" reducer, make sure that the Binovue does not extend far enough into the diagonal to touch the mirror.\u003c\/p\u003e\n\u003cp\u003eThe BinoVue is covered by TeleVue's 5-year warranty. However, the warranty does not cover abuse. Rough treatment or dropping the BinoVue may cause its prisms to get out of collimation, giving double images. According to the TeleVue instruction sheet for the BinoVue, \"Disturbance of collimation is usually evidence of abuse. It is warranted at the discretion of TeleVue. Please handle BinoVue carefully.\"\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":40221634429001,"sku":"7792","price":1095.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/3666_1.jpg?v=1662966715"},{"product_id":"t-thread-visual-back-to-use-color-filter-wheels-and-or-ccd-cameras-on-sct-scopes","title":"SBIG T-Thread Visual Back to Use Color Filter Wheels and\/or CCD Cameras on SCT Scopes","description":"The SBIG T-thread visual back adapter provides a safer way to rigidly mount your CCD imaging camera to the rear cell of a catadioptric telescope . . .The SBIG T-thread visual back adapter allows you to rigidly mount your CCD imaging camera to the rear cell of a catadioptric telescope (such as a Celestron or Meade Schmidt-Cassegrain or Meade \"Advanced Ritchey-Chrétien\" catadioptric). This is the safer and preferred method of mounting the camera, rather than inserting the 1.25\" nosepiece of the camera into the scope's 1.25\" eyepiece holder with only a single thumbscrew to support its weight.\n\u003cp\u003eThe adapter is precision-made for SBIG by Baader Planetarium in Germany and bears the Baader Planetarium logo. One side has standard 42mm male T-threads that connect to the female T-threads on the front of the camera or filter wheel (after removing the 1.25\" nosepiece usually found there). The other side threads onto the 2\" threads typically found on the rear cell of most commercial Schmidt-Cassegrain and catadioptric telescopes.\u003c\/p\u003e\n\u003cp\u003eA matching hard plastic dust cap threads onto the T-thread side of the adapter to protect the threads if the camera is removed for any period of time.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003cbr\u003e\n\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"SBIG","offers":[{"title":"Default Title","offer_id":40221636952137,"sku":"TVB","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/3898_1.jpg?v=1662966802"},{"product_id":"gm-8-equatorial-mount-with-tripod-and-dual-axis-drive","title":"GM-8 Equatorial mount with tripod and dual axis drive","description":"\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003eTHIS PRODUCT HAS BEEN DISCONTINUED.  THIS IS HERE FOR INFORMATIONAL PURPOSES ONLY.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Losmandy GM-8 mount is a well-made, high-precision German equatorial mount that is very portable, but can still hold a respectable payload. It is rated at a 30 pound payload capacity, making it an excellent choice for almost every 4\" refractor, most 6\" Maksutov-Cassegrains and Maksutov-Newtonians, and even some 5\" refractors. It comes standard with a dual axis drive system whose built-in drive corrector includes periodic error correction, making it a nice photographic platform for the serious astrophotographer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Losmandy GM-8 equatorial head:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAll parts are machined from stainless steel or aluminum. All aluminum parts are black anodized. All hardware is stainless steel for rust-free long life.\u003c\/p\u003e\n\u003cp\u003eBearings include one 2.100\" diameter needle thrust bearing, one 2.000\" diameter needle thrust bearing, and two 1.500\" diameter needle bearings. Right ascension and declination shafts are precision-machined of 1.250\" diameter aluminum. The 180 tooth main drive gear is machined of 2.812\" diameter 7075 aluminum. The heat-treated and ground stainless steel worm is in a dual supported ball bearing housing. There is a one-knob design variable slip clutch on each axis. The drive uses a 160 oz\/in stepper motor, with 1.0 arc second steps.\u003c\/p\u003e\n\u003cp\u003eThe unique fully-locking tangent arm design altitude adjustment allows use over a 0-64 degree latitude range. There is a single large adjustment knob for easy alignment. The latitude scale is laser engraved in 2 degree increments. The two-knob azimuth control provides a +\/- 8.5 degree adjustment range and positive locking.\u003cbr\u003e3.500\" diameter laser engraved setting circles are marked in 6 minute increments in right ascension and 2 degree increments in declination. The right ascension circle is engraved for both Northern and Southern Hemisphere use. The r. a. circle is a Porter slip ring design, so that when the mount is moved manually, or driven electronically, the r. a. circle follows the stars with no need to be reset periodically.\u003c\/p\u003e\n\u003cp\u003eA dovetail saddle that can accept both Losmandy D-plate and Vixen-style OTA dovetails allows for the fast interchanging of tube assemblies. Its range of fore and aft adjustment reduces the need for declination weights. The stainless steel counter weight shaft is removable and has a safety knob. The payload capacity is 30 lbs. The equatorial head weighs 21 lbs., exclusive of counterweight(s). The mount comes with one 7 lb. counterweight standard. Additional 11 lb. and 21 lb. counterweights are available to balance heavy payloads.\u003c\/p\u003e\n\u003cp\u003eAn optional illuminated through-the-axis polar alignment scope works in both Northern and Southern Hemispheres.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Losmandy GM-8 tripod:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe tripod is made of all machined aluminum, black anodized. Fold-up design for easy transporting. The tripod height is adjustable from 27\" to 43\". All heights are to the top of the tripod. Add 15\" (at a latitude of 34 degrees) to account for the distance from the top of the tripod to the top of the saddle. This total will give you the distance from the ground to the underside of the telescope optical tube. The tripod weighs 15 lbs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe \u003cstrong\u003eLosmandy GM-8 \u003c\/strong\u003edual-axis electronics:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe hand control box is small for comfortable use. The directional buttons on the hand control are in an intuitive diamond push button pattern. There are right ascension and declination reversing switches. Additional features include a control panel dimmer and selectable Northern and Southern Hemisphere operation, and an input for a CCD auto-guider. The control panel can be tilted for easy access. \u003c\/p\u003e\n\u003cp\u003eThere are three guiding rates - 30%, 50%, and 2x the sidereal rate. There are three setting (centering) rates - 4x, 8x, and 16x the sidereal rate, and a super fast 32x HST (high speed transfer). There are four quartz-locked tracking rates - sidereal, solar, lunar, and a King rate to compensate for atmospheric refraction when observing or imaging near the horizon. There is built-in Periodic Error Correction (PEC) for astrophotographic guiding, and programmable declination backlash compensation (TVC).\u003cbr\u003e\u003cbr\u003eThe drive is a 12 volt DC design. Adapters are provided to plug the mount into a rechargeable 12 volt battery. An optional adapter lets you plug it into an AC outlet. Current drain during operation is 500ma.\u003c\/p\u003e","brand":"Losmandy","offers":[{"title":"Default Title","offer_id":40221638328393,"sku":"GM8","price":1695.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/4002_1.jpg?v=1662966851"},{"product_id":"11-pound-counterweight-for-celestron-cg5-equatorial-mount","title":"Celestron 11 Pound Counterweight for Celestron CG5 Equatorial Mount","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis Celestron 11 pound machined counterweight lets you balance heavy accessory loads (such as a photoguide scope, accessory dovetail, mounting rings, and a camera) mounted on a Celestron telescope using a Celestron CG-5 or Advanced Series CG-5 computerized go-to equatorial mount. It will also let you balance a heavy non-Celestron scope installed on one of the above Celestron mounts (which come with only one 11 pound counterweight as standard equipment). A hand-tighten knob holds the counterweight in place on the mount's 0.75\" diameter counterweight shaft.\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThis counterweight is \u003cem\u003eNOT\u003c\/em\u003e for use with the current Celestron Advanced VX series mount. Use counterweight #1711VX with the current model Advanced VX mount.\u003c\/div\u003e\n\u003ch2\u003eTech Details:\u003c\/h2\u003e\n\u003cdiv\u003e \u003cbr\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\" data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e11 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\" data-mce-fragment=\"1\"\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003c\/div\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":40221638459465,"sku":"1711","price":34.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/4028_1.jpg?v=1662966857"},{"product_id":"filter-set-1-12-23a-58-and-80a","title":"Meade Color Eyepiece Filter Set #1 - #12, 23A, 58, and 80A","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis Product Has Been Discontinued And Is No Longer For Sale.  This Product Is Listed For Informational Purposes Only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis Meade color filter set of four 26mm clear aperture 1.25\" filters is pre-packaged at a savings over the total cost of the same filters bought individually. This set #1 is generally the most useful with 8\" and larger scopes, as it has the filters most often used when observing the Moon, Mars, Jupiter, and Saturn . . .This Meade color filter set of four 26mm clear aperture 1.25\" filters is pre-packaged at a savings over the total cost of the same filters bought individually. This set #1 is generally the most useful with 8\" and larger scopes, as it has the filters most often used when observing the Moon, Mars, Jupiter, and Saturn. The set consists of one each of the following filters:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e#12 Yellow\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003eRecommended applications for this filter:\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMoon -\u003c\/strong\u003e Improves contrast between lunar features of varying brilliance in scopes 6\" and larger, especially when combined with a polarizer or neutral density filter. \u003cstrong\u003eVenus -\u003c\/strong\u003e Occasionally helpful in revealing low-contrast banding in the thick Venusian cloud cover. \u003cstrong\u003eMars -\u003c\/strong\u003e Increases the contrast of polar caps, frost areas, low clouds, and dust storms against the ochre deserts. Also sharpens the boundaries of yellow dust clouds. \u003cstrong\u003eJupiter -\u003c\/strong\u003e Somewhat useful for darkening atmospheric currents containing low-hue blue tones and enhancing detail in small orange-red zonal features in the belts. Useful for studies of the polar regions. \u003cstrong\u003eSaturn -\u003c\/strong\u003e Somewhat useful for darkening atmospheric currents containing low-hue blue tones and enhancing detail in orange-red zonal features in the belts. Improves the visibility of Cassini's Division in the rings. \u003cstrong\u003eNeptune and Uranus -\u003c\/strong\u003e Somewhat useful for enhancing very subtle dusky features in scopes 10\" and larger. \u003cstrong\u003eComets -\u003c\/strong\u003e Brings out highlights in yellowish comet dust tails and improves the contrast of comet heads. \u003cbr\u003e\u003cstrong\u003e74% transmission\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e#23A Light Red\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003eRecommended applications for this filter:\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMoon -\u003c\/strong\u003e Somewhat useful for improving contrast between lunar features in scopes 8\" and larger. \u003cstrong\u003eMercury -\u003c\/strong\u003e Improves observations at twilight, when the planet is near the horizon. Reduces brightness of terrestrial sky to enhance daylight observing. \u003cstrong\u003eVenus -\u003c\/strong\u003e Reduces brightness of terrestrial sky in daylight observing, allowing occasional terminator deformations to be seen. \u003cstrong\u003eMars -\u003c\/strong\u003e Filters out scattered blue light in the Martian atmosphere to Increase the contrast and definition of polar caps, frost areas, low clouds, and dust storms against the ochre deserts, particularly when Mars is close to Earth's horizon, as the red light it passes is the least refracted by air currents in our atmosphere. \u003cstrong\u003eJupiter -\u003c\/strong\u003e Brings out structure in the belts and enhances festoons and polar regions. \u003cstrong\u003eSaturn -\u003c\/strong\u003e Useful on Saturn for studying the bluer cloud bands and polar regions. \u003cstrong\u003eComets -\u003c\/strong\u003e Enhances the definition of comet dust tails in 10\" and larger scopes. \u003cbr\u003e\u003cstrong\u003e25% transmission\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e#58 Green\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003eRecommended applications for this filter:\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMoon -\u003c\/strong\u003e Excellent for enhancing the contrast of lunar features in scopes 8\" and larger. \u003cstrong\u003eVenus -\u003c\/strong\u003e Increases contrast of occasionally-visible Venusian cloud patterns. Reduces the brightness of the terrestrial sky during daylight observing of Venus (an excellent time to observe this planet, as the high contrast of Venus against the dark night sky often makes for uncomfortable and unsatisfactory observing, while during the day the contrast range is not nearly as great, irradiation within your eye is reduced, and subtle Venusian features are sometimes more visible). \u003cstrong\u003eMars -\u003c\/strong\u003e Excellent for increasing contrast of Martian polar caps and surface frosts with scopes 8\" and larger. \u003cstrong\u003eJupiter -\u003c\/strong\u003e Increases the visibility of the Great Red Spot (which is more like a Faint Red Spot at the present time) with scopes 8\" and larger. Useful for observing the low-contrast hues of red and blue visible in the Jovian atmosphere. Enhances white features in the planetary atmosphere. \u003cstrong\u003eSaturn -\u003c\/strong\u003e Enhances white cloud belts and polar regions. \u003cstrong\u003eComets -\u003c\/strong\u003e Useful for observing brighter comets with scopes 8\" and larger. \u003cbr\u003e\u003cstrong\u003e24% transmission\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e#80A Medium Blue\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003eRecommended applications for this filter:\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMoon -\u003c\/strong\u003e Very useful as a contrast-enhancing lunar filter under dark sky conditions with scopes 6\" and larger. \u003cstrong\u003eMercury -\u003c\/strong\u003e May improve observations of rarely visible dusky surface features at twilight, when the planet is near the horizon. \u003cstrong\u003eVenus -\u003c\/strong\u003e Increases contrast of occasional faint dark shadings in upper Venusian clouds. \u003cstrong\u003eMars -\u003c\/strong\u003e Useful for enhancing the visibility of surface features and localized dust storms, clouds, and ice fogs with 8\" or larger scopes, particularly during the still-unexplained phenomenon of violet clearing (when the Martian atmosphere - normally a bright, featureless disc in violet light due to the scattering of short wavelengths of light by the thin atmosphere - becomes transparent through a violet or blue filter, revealing large dark surface features). \u003cstrong\u003eJupiter -\u003c\/strong\u003e Primarily used for enhancing the boundaries between the reddish belts and adjacent bright zones in the upper atmosphere. Helpful in defining the Great Red Spot and festoons in the belts. \u003cstrong\u003eSaturn -\u003c\/strong\u003e Brings out details in the belts, zones, and polar regions of the planetary disc. \u003cstrong\u003eComets -\u003c\/strong\u003e Brings out the best highlight definition in comet gas tails in 8\" and larger scopes. \u003cbr\u003e\u003cstrong\u003e30% transmission\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Meade","offers":[{"title":"Default Title","offer_id":40221638525001,"sku":"3721-1","price":49.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/4034_1.jpg?v=1662966859"},{"product_id":"variable-tele-extender-for-sct-needs-t-ring","title":"Meade Variable tele-extender for SCT, needs T-ring","description":"\u003cp\u003eThis product has been discontinued and is no long available.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis variable tele-extender is for use with all 7\" and larger Meade Schmidt-Cassegrain and Maksutov-Cassegrain telescopes and with 5\" and larger Celestron Schmidt-Cassegrain telescopes . . .This variable tele-extender is for use with all 7\" and larger Meade Schmidt-Cassegrain and Maksutov-Cassegrain telescopes and with 5\" and larger Celestron Schmidt-Cassegrain telescopes. Meade scopes supplied with a 2\" star diagonal as standard equipment (12\" and 16\" LX200s and older LX6 and Premier models) also require Meade 1.25\" eyepiece holder \u003ca href=\"\/meade-1-25-inch-eyepiece-holder-visual-back_p4315.aspx\"\u003e\u003cspan style=\"font-family: verdana; font-size: 13px; color: #990000;\"\u003e#9135\u003c\/span\u003e\u003c\/a\u003e to use this tele-extender. Meade LX200GPS scopes supplied with an electric micro-focuser will also need a #9135 eyepiece holder.\u003c\/p\u003e\n\u003cp\u003eThe tele-extender has two nested tubes that telescope in and out of each other. This varies the adapter's physical length, which changes the image size over a limited range without having to change the eyepiece. The telescoping tubes are held firmly at the desired length by thumbscrews. The tele-extender has internal antireflection threading for high contrast, and needs an optional T-ring.\u003c\/p\u003e\n\u003cp\u003eThe calculator to the right gives the photographic values based on the tele-extender being used when closed to its shortest length. When the tele-extender is fully extended, the photographic values all will be approximately 35% higher than the results given by the calculator. Intermediate tube extensions will give photographic values between these two extremes.\u003c\/p\u003e","brand":"Meade","offers":[{"title":"Default Title","offer_id":40221639082057,"sku":"8541","price":19.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/4080_1.jpg?v=1662966860"},{"product_id":"g11-equatorial-mount-with-folding-hd-tripod","title":"Losmandy G11 Equatorial Mount, with Folding HD Tripod","description":"\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003eTHIS PRODUCT HAS BEEN DISCONTINUED.  THIS IS HERE FOR INFORMATIONAL PURPOSES ONLY.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Losmandy G-11 is an industry-standard rock solid mount that can hold up to 60 pounds of payload. Weighing in at 92 pounds with counterweight, with a heaviest singe component weight of 36 lbs, it can generally be taken down and set up by one person.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003eTHIS PRODUCT HAS BEEN DISCONTINUED.  THIS IS HERE FOR INFORMATIONAL PURPOSES ONLY.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe industry-standard Losmandy G-11 is a rock solid visual and photographic tracking equatorial mount that can hold an instrument payload of up to 60 pounds. While not the most portable mount in the world, weighing in at 92 pounds, it can generally be taken down and set up by one person, as the heaviest single component weighs only 36 lbs. This mount has excellent drive smoothness and accuracy, plus programmable periodic error correction, and is nicely suited for astrophotography.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLOSMANDY G11 EQUATORIAL HEAD SPECIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMade of machined aluminum and stainless steel, black anodized, with all stainless steel hardware. It has one 3.750\" diameter needle thrust bearing, one 2.000\" diameter needle thrust bearing, and two 1.500\" diameter needle bearings.\u003c\/p\u003e\n\u003cp\u003eThe drive is a 160 oz\/in stepper motor, with 0.5 arc second steps. The 360 tooth drive gear is 5.625\" in diameter and made of 7075 aluminum. The dual-supported, ball bearing housed, high precision brass worm is heat treated and ground. There is a one knob design variable slip clutch in both axes.\u003c\/p\u003e\n\u003cp\u003eThe G11 has 1.250\" diameter stainless steel r. a. and dec shafts. There is a fully locking, unique tangent arm design altitude adjustment, with a large knob for easy alignment over a 14° to 64°range (capable of 8° to 68° with a small modification). It has a laser engraved latitude scale in 2° increments. The G11 has a single knob azimuth control, bi-directional +\/- 8.5°.\u003c\/p\u003e\n\u003cp\u003eThere are 5.000\" diameter laser engraved setting circles. The right ascension circle is divided in one hour increments, with 4 minute tic marks and a vernier reading to 1 minute. The declination circle is divided in 10° increments, with 1° tic marks and a vernier reading to 0.1°. The right ascension circle is engraved for both Northern and Southern Hemisphere use. The setting circles use a Porter slip ring design.\u003c\/p\u003e\n\u003cp\u003eDovetail saddle-plate accepts both Losmandy D-plate and Vixen-style dovetails. It allows for the interchanging of any tube assembly and reduces the need for declination weights.\u003c\/p\u003e\n\u003cp\u003eThe mount has a removable stainless steel weight shaft with safety knob. A 21 lb counterweight is standard, and 7 lb and 11 lb extra counterweights are available.\u003c\/p\u003e\n\u003cp\u003eThe is an optional through-the-axis polar scope that works in both Northern and Southern Hemispheres.\u003c\/p\u003e\n\u003cp\u003eInstrument payload capacity 60 lbs (100 pound payload of instruments and counterweights combined).\u003c\/p\u003e\n\u003cp\u003eThe equatorial head weight is 36 lbs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eG11 FOLDING TRIPOD SPECIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe tripod is all machined aluminum, black anodized, and powder coated. The tripod height is adjustable from 33\" to 48\". All heights are from ground level to top of tripod. Add 10\" at 34° degrees latitude to the center of the declination\/right ascension junction. Add 7\" from the declination\/right ascension junction to the top of saddle. The tripod is a folding leg design for easy transport.\u003cbr\u003eTripod weight is 35 lbs, but it can carry up to 425 lbs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eG11 DUAL-AXIS ELECTRONICS SPECIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe hand control box is small for comfortable use. The directional buttons on the hand control are in an intuitive diamond push button pattern. There are right ascension and declination reversing switches. Additional features include a control panel dimmer and selectable Northern and Southern Hemisphere operation, and an input for a CCD auto-guider. The control panel can be tilted for easy access.\u003c\/p\u003e\n\u003cp\u003eThere are three guiding rates - 30%, 50%, and 2x the sidereal rate. There are three setting (centering) rates - 4x, 8x, and 16x the sidereal rate, and a super fast 32x HST (high speed transfer). There are four quartz-locked tracking rates - sidereal, solar, lunar, and a King rate to compensate for atmospheric refraction when observing or imaging near the horizon. There is built-in Periodic Error Correction (PEC) for astrophotographic guiding, and programmable declination backlash compensation (TVC).\u003c\/p\u003e\n\u003cp\u003eThe drive is a 12 volt DC design. Adapters are provided to plug the mount into a rechargeable 12 volt battery. An optional adapter lets you plug it into an AC outlet. Current drain during operation is 500ma.\u003c\/p\u003e","brand":"Losmandy","offers":[{"title":"Default Title","offer_id":40221640032329,"sku":"G11","price":2495.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/4209_1.jpg?v=1662966899"},{"product_id":"gemini-2-to-computer-cable","title":"Losmandy Gemini 2 to Computer Cable","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis 9' cable lets you connect the original Gemini 2 go-to system on your Losmandy equatorial mount to your laptop or PC so you can control the mount remotely. . . .This single-purpose 9' cable has a standard female DB-9 RS232 serial connector on one end and a relatively uncommon narrow-body 4-pin female telephone-type connector on the other. It has the appropriate connectors and internal wiring logic needed to connect the original Gemini 2 go-to system on your Losmandy equatorial mount to your laptop or PC so you can control the mount remotely.  The color may vary from that shown in the pictures.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Losmandy","offers":[{"title":"Default Title","offer_id":40221642227785,"sku":"GCC2","price":25.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/4788_1.jpg?v=1662966969"},{"product_id":"post-to-use-tele-pod-head-on-panoramic-mount","title":"TeleVue Post to Use TelePod Head on Panoramic Mount","description":"\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis product has been discontinued and is no longer available for sale. This is here for informational purposes only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a simple adapter post that will allow you to attach the Tele-Pod head on a TeleVue Panoramic mount.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":40221643374665,"sku":"TVPP","price":30.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/5102_1.jpg?v=1662967000"},{"product_id":"stt-stlx-stx-remote-guiding-head","title":"SBIG STT\/STLX\/STX Remote Guiding Head","description":"\u003cp\u003eThe SBIG Remote Guider Head lets you guide on stars of undiminished brightness when imaging through a color filter wheel with an SBIG Research Series camera, as well as lets you add a self-guiding function to an SBIG \"I-Series\" camera that was originally supplied with an imaging detector only . . .When color imaging with a self-guiding SBIG Research Series CCD camera through a color filter wheel, you may encounter some areas of the sky that have few reasonably bright stars to use for guiding. In such a case, the color filters will dim the only available guide stars to the point where guiding with the camera's internal guiding chip may become erratic as seeing conditions fluctuate. The use of this optional SBIG #RGH separate external guiding head will eliminate any such guiding issues.\u003c\/p\u003e\n\u003cp\u003eThe #RGH remote guiding head contains a thermoelectrically-cooled, 16 bit, 657 x 495 pixel Texas Instruments TC-237H CCD detector that is identical to internal self-guiding CCD in SBIG STT, STLX, and STX camera bodies only. It does not fit older model cameras. It connects to, and is powered by, the SBIG camera and takes over the guiding function from the internal guiding detector within the camera body. The #RGH can be mounted in a separate photoguide telescope or in an off-axis guider body, such as the Astrodon #MOAG.\u003c\/p\u003e\n\u003cp\u003eMounted away from the main camera body, and with no filter wheel in front of it, the #RGH can guide on a star of undiminished brightness, including one well off the imaging camera's axis in case there is no suitable guide star in the target's immediate vicinity.\u003c\/p\u003e\n\u003cp\u003eThe #RGH remote head is equipped with T-threads on the front cover. It will accept the SBIG eFinder assembly for guiding, a camera lens adapter, a T to C adapter, or the provided 1.25\" nosepiece for use with an external guide scope. The external guider will also control the SBIG adaptive optics systems when used with an off-axis guider assembly. In addition, the Remote Guider Head lets you to add a self-guiding function to an SBIG \"I-Series\" USB ST camera that was originally supplied with an imaging detector only. It connects to the camera by means of an HDMI cable.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003cbr\u003e\n\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePixel Array\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e657 x 495\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePixel Size\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e7.4 x 7.4 microns\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"SBIG","offers":[{"title":"Default Title","offer_id":40221643505737,"sku":"RGH","price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/5121_1.jpg?v=1662967004"},{"product_id":"zero-length-adapter-for-sm60-30-and-sm90-30","title":"Coronado Zero Length Adapter for SM60\/30 and SM90\/30","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis product is discontinued and no longer for sale.  This is here for informational purposes only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Zero Length Adapter reduces a 2\" focuser or star diagonal to hold 1.25\" accessories without adding any length to the optical path. This allows you to maximize the available in-focus.\u003c\/p\u003e\n\u003cp\u003eThe ZLA is a metal collar that slips into your 2\" focuser until its top is flush with the top of the focuser or diagonal. The ZLA is split on one side. When the thumbscrew or compression ring of the 2\" focuser tightens down on the safety groove in the ZLA, the split compresses to hold firmly in place any 1.25\" accessory mounted in the ZLA.\u003c\/p\u003e\n\u003cp\u003eThere is no retaining lip on the ZLA to keep it from slipping into your focuser drawtube or star diagonal, as this would increase the back focus of the system and defeat the purpose of the ZLA, so care should be taken when installing it in your scope.\u003c\/p\u003e\n\u003cp\u003eThe ZLA is included as standard equipment with all BF30 blocking filters.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Coronado","offers":[{"title":"Default Title","offer_id":40221645406281,"sku":"ZLA","price":39.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/5344_1.jpg?v=1662967070"},{"product_id":"research-series-2-rbg-c-l-filters","title":"SBIG Research Series 2\" RBG+C+L Filters","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eTHIS PRODUCT HAS BEEN DISCONTINUED AND IS NO LONGER FOR SALE.  THIS PAGE IS HERE FOR INFORMATIONAL PURPOSES ONLY.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis 50mm LRBGC five filter set drops into the filter carousel in an SBIG STL camera for imaging without vignetting even the largest CCD detector in the series . . .This 50mm filter set from Custom Scientific for SBIG STL series cameras is designed to drop into the filter carousel built into each STL camera without vignetting the largest (35mm format) CCD detector in the series. It consists of five unmounted 50mm diameter filters, one each luminance, red, blue, green, and clear. The STL filter carousel is threaded for 48mm (2\") filter cells as well as these 50mm filters, but the full 50mm diameter of these unmounted filters provides the maximum aperture for the large format cameras. For this reason, each is supplied without a threaded cell, which would otherwise reduce the filter's clear aperture. This Custom Scientific 50mm filter set from SBIG is professional quality, antireflection coated, and IR blocked. The luminance filter is both UV and IR blocked to match the RGB cutoffs. It is also AR (anti-reflection) coated. The clear filter is AR coated only. All are parfocal.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"SBIG","offers":[{"title":"Default Title","offer_id":40221647667273,"sku":"RGB2","price":749.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/6612_1.jpg?v=1662967154"},{"product_id":"heater-strap-for-10-scopes","title":"Astrozap Heater Strap for 9\" \u0026 10\" Scopes","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"193\" data-end=\"246\" class=\"\"\u003eAstroZap Dew Heater Strap for 9\" \u0026amp; 10\" Telescopes\u003c\/h3\u003e\n\u003cp data-start=\"248\" data-end=\"659\" class=\"\"\u003eIf you’re observing with a \u003cstrong data-start=\"275\" data-end=\"298\"\u003e9\" or 10\" telescope\u003c\/strong\u003e, you’re sitting in the dew zone sweet spot—just large enough to deliver spectacular deep-sky views, and just large enough to fog over when the temperature drops. The \u003cstrong data-start=\"465\" data-end=\"516\"\u003eAstroZap Dew Heater Strap for 9\" and 10\" scopes\u003c\/strong\u003e is engineered to prevent that, wrapping your optical tube with low, steady warmth to keep your corrector plate or front element dry all night.\u003c\/p\u003e\n\u003cp data-start=\"661\" data-end=\"1054\" class=\"\"\u003eThis flexible strap is ideal for \u003cstrong data-start=\"694\" data-end=\"759\"\u003e9\" and 10\" Schmidt-Cassegrains, Ritchey-Chrétiens, Newtonians\u003c\/strong\u003e, and other optical designs. A \u003cstrong data-start=\"790\" data-end=\"830\"\u003elow-wattage nichrome heating element\u003c\/strong\u003e is built into the fabric-backed band, delivering gentle, even heat across the full circumference of the OTA. It fastens securely with a \u003cstrong data-start=\"967\" data-end=\"983\"\u003eVelcro strap\u003c\/strong\u003e, and connects to most standard dew controllers via a \u003cstrong data-start=\"1037\" data-end=\"1053\"\u003e12V RCA plug\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1056\" data-end=\"1233\" class=\"\"\u003eWhether you're tracking faint fuzzies or imaging planetary detail, this heater strap ensures your views stay clear and uninterrupted—even in humid or rapidly cooling conditions.\u003c\/p\u003e\n\u003ch3 data-start=\"1235\" data-end=\"1248\" class=\"\"\u003eFeatures:\u003c\/h3\u003e\n\u003cul data-start=\"1249\" data-end=\"1652\"\u003e\n\u003cli data-start=\"1249\" data-end=\"1320\" class=\"\"\u003e\n\u003cp data-start=\"1251\" data-end=\"1320\" class=\"\"\u003eDesigned for \u003cstrong data-start=\"1264\" data-end=\"1283\"\u003e9\" and 10\" OTAs\u003c\/strong\u003e, including SCTs, RCs, and Newtonians\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1321\" data-end=\"1390\" class=\"\"\u003e\n\u003cp data-start=\"1323\" data-end=\"1390\" class=\"\"\u003e\u003cstrong data-start=\"1323\" data-end=\"1361\"\u003eLow-power nichrome heating element\u003c\/strong\u003e prevents dew before it forms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1391\" data-end=\"1446\" class=\"\"\u003e\n\u003cp data-start=\"1393\" data-end=\"1446\" class=\"\"\u003e\u003cstrong data-start=\"1393\" data-end=\"1405\"\u003eRCA plug\u003c\/strong\u003e compatible with most 12V dew controllers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1447\" data-end=\"1509\" class=\"\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1509\" class=\"\"\u003e\u003cstrong data-start=\"1449\" data-end=\"1472\"\u003eFabric-backed strap\u003c\/strong\u003e for durability and field flexibility\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1510\" data-end=\"1574\" class=\"\"\u003e\n\u003cp data-start=\"1512\" data-end=\"1574\" class=\"\"\u003e\u003cstrong data-start=\"1512\" data-end=\"1531\"\u003eVelcro fastener\u003c\/strong\u003e for quick, secure, adjustable installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1575\" data-end=\"1652\" class=\"\"\u003e\n\u003cp data-start=\"1577\" data-end=\"1652\" class=\"\"\u003eHelps protect \u003cstrong data-start=\"1591\" data-end=\"1652\"\u003ecorrector plates, front lenses, or secondary mirror cells\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1654\" data-end=\"1672\" class=\"\"\u003eObserving Tip:\u003c\/h3\u003e\n\u003cp data-start=\"1673\" data-end=\"1943\" class=\"\"\u003eMid-size scopes can suffer from rapid temperature loss after sunset, especially during fall and spring when the temperature swing is steep. Power on your heater early to avoid sudden dew formation—and pair it with a dew shield for longer battery life and extra contrast.\u003c\/p\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Astrozap","offers":[{"title":"Default Title","offer_id":40221648912457,"sku":"DH10AZ","price":65.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/7439_1.jpg?v=1662967199"},{"product_id":"heater-strap-for-16-scopes","title":"Astrozap Heater Strap for 16\" Scopes","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"233\" data-end=\"281\" class=\"\"\u003eAstroZap Dew Heater Strap for 16\" Telescopes\u003c\/h3\u003e\n\u003cp data-start=\"283\" data-end=\"675\" class=\"\"\u003eWhen you're operating a \u003cstrong data-start=\"307\" data-end=\"324\"\u003e16\" telescope\u003c\/strong\u003e, you’re working with powerhouse optics—and that means a \u003cstrong data-start=\"381\" data-end=\"423\"\u003egiant corrector plate or front element\u003c\/strong\u003e that can attract dew faster than a cold soda on a summer night. The \u003cstrong data-start=\"492\" data-end=\"536\"\u003eAstroZap Dew Heater Strap for 16\" scopes\u003c\/strong\u003e delivers concentrated, reliable warmth to keep your glass dry and your views crystal clear, no matter how long you're out under the stars.\u003c\/p\u003e\n\u003cp data-start=\"677\" data-end=\"1113\" class=\"\"\u003eThis heater strap is designed for \u003cstrong data-start=\"711\" data-end=\"800\"\u003e16\" Schmidt-Cassegrains, Ritchey-Chrétiens, Newtonians, and other large-aperture OTAs\u003c\/strong\u003e. It wraps securely around the front of your optical tube and uses a \u003cstrong data-start=\"869\" data-end=\"909\"\u003elow-wattage nichrome heating element\u003c\/strong\u003e embedded in a flexible band. The \u003cstrong data-start=\"943\" data-end=\"964\"\u003estandard RCA plug\u003c\/strong\u003e connects to most 12V dew controllers (sold separately), allowing you to regulate power and conserve battery life while keeping your optics fog-free.\u003c\/p\u003e\n\u003cp data-start=\"1115\" data-end=\"1312\" class=\"\"\u003eBuilt for rugged field use, the strap is \u003cstrong data-start=\"1156\" data-end=\"1173\"\u003efabric-backed\u003c\/strong\u003e for durability and comfort, and attaches easily with a \u003cstrong data-start=\"1229\" data-end=\"1255\"\u003eVelcro fastening strip\u003c\/strong\u003e that keeps it snug and evenly heated across the surface.\u003c\/p\u003e\n\u003ch3 data-start=\"1314\" data-end=\"1327\" class=\"\"\u003eFeatures:\u003c\/h3\u003e\n\u003cul data-start=\"1328\" data-end=\"1742\"\u003e\n\u003cli data-start=\"1328\" data-end=\"1398\" class=\"\"\u003e\n\u003cp data-start=\"1330\" data-end=\"1398\" class=\"\"\u003eDesigned for \u003cstrong data-start=\"1343\" data-end=\"1361\"\u003e16\" telescopes\u003c\/strong\u003e, including SCTs, RCs, and Newtonians\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1399\" data-end=\"1461\" class=\"\"\u003e\n\u003cp data-start=\"1401\" data-end=\"1461\" class=\"\"\u003e\u003cstrong data-start=\"1401\" data-end=\"1424\"\u003eRCA-compatible plug\u003c\/strong\u003e connects to most 12V dew controllers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1462\" data-end=\"1534\" class=\"\"\u003e\n\u003cp data-start=\"1464\" data-end=\"1534\" class=\"\"\u003e\u003cstrong data-start=\"1464\" data-end=\"1503\"\u003eLow-wattage nichrome heater element\u003c\/strong\u003e provides even, reliable warmth\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1535\" data-end=\"1606\" class=\"\"\u003e\n\u003cp data-start=\"1537\" data-end=\"1606\" class=\"\"\u003e\u003cstrong data-start=\"1537\" data-end=\"1567\"\u003eFabric-backed construction\u003c\/strong\u003e is flexible, durable, and field-tested\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1607\" data-end=\"1668\" class=\"\"\u003e\n\u003cp data-start=\"1609\" data-end=\"1668\" class=\"\"\u003e\u003cstrong data-start=\"1609\" data-end=\"1638\"\u003eVelcro wraparound closure\u003c\/strong\u003e ensures a secure and snug fit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1669\" data-end=\"1742\" class=\"\"\u003e\n\u003cp data-start=\"1671\" data-end=\"1742\" class=\"\"\u003ePrevents dew buildup on corrector plates, secondary mirrors, and optics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1744\" data-end=\"1762\" class=\"\"\u003eObserving Tip:\u003c\/h3\u003e\n\u003cp data-start=\"1763\" data-end=\"2048\" class=\"\"\u003eDew forms faster on larger surfaces, especially if your telescope has been cooling outside for a while. A heater strap is the first line of defense—add a matching dew shield for even better performance and contrast. Always start heating \u003cem data-start=\"2000\" data-end=\"2008\"\u003ebefore\u003c\/em\u003e dew appears to stay ahead of the curve.\u003c\/p\u003e","brand":"Astrozap","offers":[{"title":"Default Title","offer_id":40221649076297,"sku":"DH16AZ","price":71.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/7444_1.jpg?v=1662967205"},{"product_id":"powerseeker-60-eq-2-4-equatorial-refractor","title":"Celestron PowerSeeker 60 EQ, 2.4\" Equatorial Refractor","description":"\u003cp\u003eThe PowerSeeker 60 equatorial refractor is a \u003cem\u003every \u003c\/em\u003eeconomical introduction to astronomy for the beginning backyard astronomer. It is capable of providing good images of the Moon, the planets, and many of the brighter deep space objects.\u003c\/p\u003e\n\u003cp\u003eThis Celestron PowerSeeker 60EQ telescope is a 60mm equatorial refractor that's a good choice for a beginning astronomer who wants to do some casual looking at the sights of the solar system . . . and beyond. It uses achromatic optics to provide you with good high contrast views of the Moon, planets, binary stars, and star clusters – as well as many of the brighter nebulas and even some galaxies.\u003c\/p\u003e\n\u003cp\u003eThe construction of the optical system is quite good, as the PowerSeeker has all-glass optical components, with high transmission coatings for enhanced image brightness and clarity. The equatorial mount has slow motion controls in both axes, to let you easily track objects across the sky.\u003c\/p\u003e\n\u003cp\u003eThe PowerSeeker 60 has a light grasp 76 times that of the sharpest eye. Combine that light grasp with its two eyepieces (a 20mm and a 4mm) and 3x Barlow lens, and you have the ability to see many, many celestial sights that are simply invisible to the unaided eye. It can open a whole new world to you, at a surprisingly affordable price.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis Telescope's Optical System . . .\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRefractor optical tube:\u003c\/strong\u003e 60mm (2.4\") aperture air-spaced two-element crown and flint glass lens. 900mm focal length f\/15 all-glass optics. No plastic lenses.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCoated optics:\u003c\/strong\u003e The objective lens has antireflection coatings on all surfaces for high light transmission and good contrast.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDew shield:\u003c\/strong\u003e A dew shield (an extension of the optical tube that's threaded onto the front of the objective lens) slows the formation of dew on the lens in cold weather. This extends your undisturbed observing time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRack and pinion focuser:\u003c\/strong\u003e The 1.25\" focuser has dual focusing knobs for precise image control with either hand. The large focus knobs are easy to operate, even while wearing gloves or mittens in cold weather.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStar diagonal:\u003c\/strong\u003e The 90° viewing angle 1.25\" star diagonal (eyepiece holder) allows comfortable viewing when looking overhead at the sky. It has a built-in image erecting prism that provides right-reading images that show you the sky and lunar features oriented the same way you see them through binoculars or with your unaided eye.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTwo eyepieces:\u003c\/strong\u003e You get a high power 1.25\" 4mm (225x) eyepiece and a low power 1.25\" 20mm (45x) with a 1° field of view (twice the diameter of the full Moon). Both eyepieces have antireflection coatings on their lens surfaces for sharp images and good contrast. The 4mm eyepiece is realistically beyond the scope's usable magnification limit on all but the very rare nights of absolutely perfect seeing conditions. An optional 9mm eyepiece comes closer to providing the highest useful power on a regular basis.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBarlow lens:\u003c\/strong\u003e A 1.25\" 3x Barlow lens is included that triples the magnification of the two supplied eyepieces to 135x and 675x. The 675x magnification of the 4mm eyepiece\/Barlow combination is far beyond the scope's usable magnification capability, however. Do not count on using that optical combination very often, if at all. A lower power eyepiece, such as a 40mm (22.5x; 67.5x with the Barlow), would provide a pair of magnifications more useful than the impractical 675x of the 4mm and Barlow combination.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFinderscope:\u003c\/strong\u003e A low power 5x24mm finderscope attaches to the side of the optical tube. The straight-through viewing refractor finderscope provides a traditional inverted mirror-image astronomical view. If properly collimated (aligned) with the view through the main telescope, its crosshairs will help you center distant objects in the telescope so you don't have to search for them using the narrow eyepiece field of view.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis Telescope's Mount . . .\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEquatorial mount:\u003c\/strong\u003e The German equatorial mount is designed for astronomical observing. By aligning the mount on the north celestial pole, you only need to turn one slow motion control knob to follow planets and stars as they travel across the sky. A counterweight on the opposite side of the mount from the telescope balances the weight of the optical tube and makes it easy to move the scope effortlessly from one part of the sky to another.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSetting circles:\u003c\/strong\u003e Setting circles (graduated scales marked in either hours and minutes or degrees) are provided in both right ascension (the east\/west position of objects in the sky measured in hours and minutes) and declination (the north\/south position measured in degrees). These allow you to align the scope on the approximate position of an object in the sky by using its r. a. and dec coordinates from a star chart - before you search for it in the finderscope and eyepiece. Setting circles can reduce the time it takes for you to find the fainter and more difficult deep space objects.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManual slow motion controls:\u003c\/strong\u003e There are two slow motion control knobs connected to the mount by long flexible cables so they are easy to reach while observing. One controls the scope's motion in right ascension (the east\/west direction in the sky). Turning this knob enables you to follow the motion of celestial objects as they travel from east to west across the sky.\u003c\/p\u003e\n\u003cp\u003eThe second controls the scope's motion in declination (the north\/south direction in the sky). Turning this knob enables you to correct for any north\/south drift a celestial object may take as it drifts across the sky, due to an improper alignment of the scope on the north celestial pole when you first set it up.\u003c\/p\u003e\n\u003cp\u003eThe two controls combine to give you complete access to any part of the sky. They give you the ability to star hop from a known object to any other object by using a star chart. They let you center objects in the field of view, and track them effortlessly with only an occasional quick turn of the r. a. knob.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTripod:\u003c\/strong\u003e The lightweight aluminum tripod easily adjusts for standing or seated observations through the telescope. The tripod includes an accessory shelf that holds your eyepieces and Barlow.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTwo year warranty:\u003c\/strong\u003e As an expression of Celestron's confidence in the quality of their products, the PowerSeeker is protected by Celestron's two-year limited warranty against flaws in materials and workmanship.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAperture\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2.4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Length\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e900mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Ratio\u003c\/th\u003e\n\u003ctd class=\"data\"\u003ef\/15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHighest Useful Magnification\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e144x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e11 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResolution\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1.9 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupplied Eyepiece\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e20mm, 4mm, 3x Barlow 1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTelescope Type\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eRefractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eView Finder\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5x24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVisual Limiting Magnitude\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e11.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 years \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eSupplied Accessories: \u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e60mm aperture achromatic refractor optical tube with fully coated optics and 1.25\" rack and pinion focuser\u003c\/li\u003e\n\u003cli\u003eEquatorial mount with setting circles, manual slow-motion controls, and locks on both axes\u003c\/li\u003e\n\u003cli\u003e4mm (225X) and 20mm (45X) eyepieces\u003c\/li\u003e\n\u003cli\u003e90° 1.25\" erect image star diagonal\u003c\/li\u003e\n\u003cli\u003e3x 1.25\" Barlow lens\u003c\/li\u003e\n\u003cli\u003e5 x 24mm straight-through finderscope\u003c\/li\u003e\n\u003cli\u003eOperating instructions\u003c\/li\u003e\n\u003cli\u003eTheSky X CD-ROM software\u003c\/li\u003e\n\u003cli\u003eAdjustable height aluminum tripod with accessory tray.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":40221649338441,"sku":"PS60E","price":132.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/8266_1.jpg?v=1662967214"},{"product_id":"nexstar-102-slt-102mm-achromatic-go-to-altazimuth-refractor","title":"Celestron NexStar 102 SLT 102mm Achromatic Go-To Altazimuth Refractor","description":"\u003cp\u003eThis product has been discontinued and is no longer available for sale.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe NexStar 102 SLT (Star Locating Telescope) is a big aperture fast focal ratio refractor that shows you bright wide-angle deep space views for a surprisingly small price. If you want a scope that will automatically find the faint fuzzies outside the solar system, this Celestron go-to may be just what you are looking for . . .\u003c\/p\u003e\n\u003cp\u003eIf you want to see the faint fuzzies that populate the skies - the deep space nebulas, galaxies, and open star clusters - but don't know Altair from Zubenelgenubi and wouldn't know which way up to hold a star chart anyway, look no further than this Celestron 102 SLT 4\" go-to refractor.\u003c\/p\u003e\n\u003cp\u003eIts new SkyAlign easy alignment technology and Star Pointer red dot LED finder make lining up on the sky a breeze. Once aligned, the scope's computer hand control will find more than 4,000 celestial objects for you and will track them unerringly while you observe at your leisure. With its pre-assembled adjustable height steel tripod and easy no-tool assembly, the NexStar 102 SLT can be up and ready to take you on a tour of the Universe in a matter of minutes.\u003cbr\u003e\u003cbr\u003eThe 102mm NexStar 102 SLT is almost 60% brighter than an 80mm scope, with 25% higher resolution, for images that are bright and crisp. The huge 1.73° field of its standard eyepiece is superb for scanning wide deep space vistas. It will hold the full Pleiades open star cluster within its field. Put in an optional 40mm eyepiece and you get a 2.5° field wide enough to nearly encompass the great galaxy M31 in Andromeda in its entirety.\u003c\/p\u003e\n\u003cp\u003eWith the excellent resolution of its 4\" optics, views of the Moon and planets within the solar system (as well as close-ups of birds in your back yard) are sharp and detailed. \u003cbr\u003eWhether an entry-level scope for the beginning astronomer, or a second scope for the more-than-casual backyard astronomer, the NexStar 102 SLT has the features and optical performance that will keep any skywatcher happily observing for years to come.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis Telescope's Optical System . . .\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAchromatic refractor optical system:\u003c\/strong\u003e 102mm aperture (660mm focal length f\/6.5) aluminum tube. Multicoated optics for high light transmission and good contrast. A no-tool quick release dovetail connects the tube to the mount for fast set-up and take-down. A good-sized lens shade is provided to shield the lens from ambient light for improved contrast and retard the formation of dew for the maximum uninterrupted observing time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRed dot finder:\u003c\/strong\u003e Star Pointer non-magnifying variable brightness red dot finder on a quick-release dovetail mounting bracket. The Star Pointer is a quick and easy way to point your telescope exactly to the desired object in the sky. There's no need to worry about the inverted images you see through traditional finders. Just align the red dot seen in the Star Pointer with the desired star in the sky and you're done.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFocuser:\u003c\/strong\u003e 2\" rack and pinion with a 1.25\" eyepiece adapter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStar diagonal:\u003c\/strong\u003e 1.25\" 90° prism.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTwo eyepieces:\u003c\/strong\u003e The first is a 1.25\" 25mm fully coated Kellner (26x). The eyepiece field of view is 1.73° across, almost three and a half times wider than the diameter of the full Moon for expansive views of nebulas, galaxies, open star clusters and terrestrial observing. The second is a 1.25\" 9mm fully coated Kellner (73x) with a 0.61° field for more close-up views of the Moon, planets, and globular star clusters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis Telescope's Mount . . .\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFork mount\/drive system:\u003c\/strong\u003e Single fork arm altazimuth design with pre-installed dual DC servo motor drives. A compartment in the drive base accepts eight user-supplied AA batteries for powering the telescope. Selectable lunar, solar, or sidereal (star) tracking rates, with nine different slewing and centering speeds for locating objects (4°\/sec, 2°\/sec, 1°\/sec, 0.5°\/sec, and 32x\/16x\/8x\/4x\/2x the sidereal rates). For more details, click on the \"SLT mount\" icon in the support tab above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNexStar computer control:\u003c\/strong\u003e The supplied computer hand control has an illuminated numeric keypad and a two-line 16-character LCD display. It has a database of 4,033 stars and objects, including the complete Messier and Caldwell catalogs of famous deep space objects; a selection of the brightest and best deep space objects from the Revised New General Catalog (NGC); selected SAO stars, including the best variable stars and multiple star systems; the planets; the Moon; and more.\u003c\/p\u003e\n\u003cp\u003eA few keystrokes on the NexStar hand control automatically slews the 102 SLT to any of those 4,033 objects, including over 600 galaxies, 300 star clusters, and dozens of beautiful binary stars. The computer's software can be flash upgraded via the internet so you will always have the most up-to-date software version available.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSkyAlign Technology:\u003c\/strong\u003e With new patent-pending Celestron SkyAlign technology, you don't have to know Altair from Zubenelgenubi or know how to read a star chart to line up your telescope on the sky. Simply input the date, time, and your location into the computer hand control. The computer will normally default to your last observing site automatically, but can remember up to ten different favorite observing locations for you to choose from.\u003cbr\u003e\u003cbr\u003eOnce you've entered the date, time, and location, use the Star Pointer red dot finder to align the telescope on any three bright stars, or to two stars and a bright planet or the Moon. The NexStar computer system will automatically determine which objects were chosen and then generate an internal map of the sky that lets it move automatically to any star or object you select for the rest of the night.\u003cbr\u003e\u003cbr\u003eAfter the scope has aligned itself with the sky, it takes only a few keystrokes on the computer hand control to have the scope move automatically to your night's first observing target and start tracking it so you can observe at your leisure. You can find hundreds of fascinating deep space objects your first night out, even if you have never used a telescope before. No matter what level of experience you start from, your NexStar SLT scope will unfold all the wonders of the Universe for you, your family, and your friends. For more details, click on the \"SLT computer\" icon in the support tab above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdjustable height tripod:\u003c\/strong\u003e The preassembled tripod has stainless steel legs to damp vibrations quickly. The center leg brace holds a convenient no-tool quick-release accessory tray to keep your eyepieces and accessories up and out of the dew-soaked grass.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTwo-year warranty:\u003c\/strong\u003e All Celestron telescopes have a two-year warranty, double that of competitive scopes.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAperture\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBinary and Star Cluster Observation\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVery Good\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Length\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e660mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Ratio\u003c\/th\u003e\n\u003ctd class=\"data\"\u003ef\/6.47\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGalaxy and Nebula Observation\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eFair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHighest Useful Magnification\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e165x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLunar Observation\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eGreat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e14 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePlanetary Observation\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eVery Good\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResolution\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1.14 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTelescope Type\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eRefractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVisual Limiting Magnitude\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e12.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eSupplied Accessories: \u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e102mm multicoated refractor optics\u003c\/li\u003e\n\u003cli\u003eGo-to computerized altazimuth mount with dual-axis DC servo motor drives\u003c\/li\u003e\n\u003cli\u003ePre-assembled adjustable height stainless steel tripod\u003c\/li\u003e\n\u003cli\u003eQuick release accessory tray\u003c\/li\u003e\n\u003cli\u003eHand control with 4,000+ star and object database for go-to operation\u003c\/li\u003e\n\u003cli\u003eInternal AA battery compartment (batteries not supplied)\u003c\/li\u003e\n\u003cli\u003eBattery-powered variable brightness Star Pointer red LED non-magnifying finder (battery supplied)\u003c\/li\u003e\n\u003cli\u003e2\" rack and pinion focuser with 1.25\" eyepiece adapter\u003c\/li\u003e\n\u003cli\u003e1.25\" prism-type star diagonal\u003c\/li\u003e\n\u003cli\u003e1.25\" 25mm Kellner eyepiece (26x)\u003c\/li\u003e\n\u003cli\u003e1.25\" 9mm Kellner eyepiece (73x)\u003c\/li\u003e\n\u003cli\u003eTheSky Level 1 CD-ROM star-charting software\u003c\/li\u003e\n\u003cli\u003eNSOL software for controlling the scope from a laptop or PC\u003c\/li\u003e\n\u003cli\u003eDust covers.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":40221649797193,"sku":"NS102SL","price":639.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/8780.jpg?v=1662967224"},{"product_id":"aluminum-clad-hard-case-for-etx-80-refractor","title":"Meade Aluminum Clad Hard Case for ETX-80 Refractor","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis Product Has Been Discontinued And Is No Longer For Sale.  This Product Is Listed For Informational Purposes Only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis aluminum-clad case will hold and protect the 80mm Meade ETX-80 go-to refractor and standard accessories.\u003c\/p\u003e\n\u003cp\u003eThis aluminum-clad case has a foam interior with die-cut pockets that hold and protect the 80mm Meade ETX-80 go-to refractor and all standard accessories except the tripod. The foam is also cut out to hold two extra eyepieces. The 20.75\" x 12.25\" x 10\" lockable case has a brushed aluminum finish with reinforced edges, a carrying handle, and metal hinges.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Meade","offers":[{"title":"Default Title","offer_id":40221651370057,"sku":"80CASE","price":89.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/10327_1.jpg?v=1662967281"},{"product_id":"eyepiece-caddy-for-meade-etx-maksutov-cassegrains","title":"Astrozap Eyepiece Caddy for Meade ETX Maksutov-Cassegrains","description":"\u003cp\u003eThis aluminum eyepiece caddy for all Meade ETX Maksutov-Cassegrain scopes serves a double purpose. It keeps as many as seven 1.25\" eyepieces and your Autostar computer hand control close at hand so you can find them easily in the dark. It also helps you level your scope when setting it up so that your computer can find celestial objects more easily.\u003c\/p\u003e\n\u003cp\u003eThe ETX caddy is placed on top of your tripod so that the holes in the caddy line up with the bolt holes on the tilt plate of the tripod. Your ETX is placed on top of the caddy and the tripod bolts are threaded up through the caddy and into the ETX base to hold the scope in place. The bubble level on the caddy can be used as a guide to help you level your tripod by adjusting the length of the tripod legs.\u003c\/p\u003e\n\u003ch3 data-start=\"234\" data-end=\"296\" class=\"\"\u003eAstroZap Eyepiece Caddy for Meade ETX Maksutov-Cassegrains\u003c\/h3\u003e\n\u003cp data-start=\"298\" data-end=\"643\" class=\"\"\u003eIf you’ve ever fumbled for an eyepiece in the dark while observing with your \u003cstrong data-start=\"375\" data-end=\"388\"\u003eMeade ETX\u003c\/strong\u003e, the \u003cstrong data-start=\"394\" data-end=\"421\"\u003eAstroZap Eyepiece Caddy\u003c\/strong\u003e is about to become your new best friend. This lightweight, custom-fit accessory mounts directly onto the OTA of your \u003cstrong data-start=\"539\" data-end=\"566\"\u003eETX Maksutov-Cassegrain\u003c\/strong\u003e, keeping your most-used eyepieces close at hand—and out of your coat pocket.\u003c\/p\u003e\n\u003cp data-start=\"645\" data-end=\"915\" class=\"\"\u003eMade from sturdy yet lightweight \u003cstrong data-start=\"678\" data-end=\"699\"\u003eblack ABS plastic\u003c\/strong\u003e, the caddy is precision-formed to follow the curve of the telescope tube for a snug, secure fit. It attaches with \u003cstrong data-start=\"814\" data-end=\"853\"\u003ehook-and-loop (Velcro-style) strips\u003c\/strong\u003e, meaning no drilling or permanent modifications are required.\u003c\/p\u003e\n\u003cp data-start=\"917\" data-end=\"1206\" class=\"\"\u003eThis version is tailored to fit the \u003cstrong data-start=\"953\" data-end=\"963\"\u003eETX-90\u003c\/strong\u003e, \u003cstrong data-start=\"965\" data-end=\"976\"\u003eETX-105\u003c\/strong\u003e, and \u003cstrong data-start=\"982\" data-end=\"993\"\u003eETX-125\u003c\/strong\u003e, and includes \u003cstrong data-start=\"1008\" data-end=\"1032\"\u003etwo eyepiece holders\u003c\/strong\u003e sized to fit standard 1.25\" barrels. Whether you're swapping between high-power planetary views or wide-field scans, you’ll spend less time reaching and more time observing.\u003c\/p\u003e\n\u003ch3 data-start=\"1208\" data-end=\"1221\" class=\"\"\u003eFeatures:\u003c\/h3\u003e\n\u003cul data-start=\"1222\" data-end=\"1616\"\u003e\n\u003cli data-start=\"1222\" data-end=\"1309\" class=\"\"\u003e\n\u003cp data-start=\"1224\" data-end=\"1309\" class=\"\"\u003eDesigned specifically for \u003cstrong data-start=\"1250\" data-end=\"1309\"\u003eMeade ETX-90, ETX-105, and ETX-125 Maksutov-Cassegrains\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1310\" data-end=\"1350\" class=\"\"\u003e\n\u003cp data-start=\"1312\" data-end=\"1350\" class=\"\"\u003eHolds \u003cstrong data-start=\"1318\" data-end=\"1341\"\u003etwo 1.25\" eyepieces\u003c\/strong\u003e securely\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1351\" data-end=\"1408\" class=\"\"\u003e\n\u003cp data-start=\"1353\" data-end=\"1408\" class=\"\"\u003e\u003cstrong data-start=\"1353\" data-end=\"1368\"\u003eCurved back\u003c\/strong\u003e conforms to OTA for a sleek, custom fit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1409\" data-end=\"1485\" class=\"\"\u003e\n\u003cp data-start=\"1411\" data-end=\"1485\" class=\"\"\u003e\u003cstrong data-start=\"1411\" data-end=\"1449\"\u003eAttaches with hook-and-loop strips\u003c\/strong\u003e—no tools or permanent modifications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1486\" data-end=\"1550\" class=\"\"\u003e\n\u003cp data-start=\"1488\" data-end=\"1550\" class=\"\"\u003eMade from durable \u003cstrong data-start=\"1506\" data-end=\"1527\"\u003eblack ABS plastic\u003c\/strong\u003e to withstand field use\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1551\" data-end=\"1616\" class=\"\"\u003e\n\u003cp data-start=\"1553\" data-end=\"1616\" class=\"\"\u003eKeeps eyepieces warm and within reach during observing sessions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1618\" data-end=\"1636\" class=\"\"\u003eObserving Tip:\u003c\/h3\u003e\n\u003cp data-start=\"1637\" data-end=\"1883\" class=\"\"\u003eIn colder weather, keeping your eyepieces close to the OTA (and thus slightly warmed by the scope and your hands) can help reduce fogging when swapping them out. Plus, you won’t need to take your eyes off the sky to dig through an accessory case.\u003c\/p\u003e","brand":"Astrozap","offers":[{"title":"Default Title","offer_id":40221652123721,"sku":"ETXCAD","price":55.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/10930_1.jpg?v=1662967303"},{"product_id":"four-piece-1-25-red-green-blue-ir-filter-set-for-ccd-imaging","title":"Four-piece 1.25\" red\/green\/blue\/IR filter set for CCD imaging","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Meade DSI (Deep Sky Imager) Pro and DSI Pro II CCD cameras come without filters, but with a click-stop filter slider for repeatable positioning when using 1.25\" filters for tri-color imaging. This is the CCD color filter set for use in that filter slider. These filters will also perform well in the standard 1.25\" filter wheels of CCD cameras from other manufacturers.\u003c\/p\u003e\n\u003cp\u003eThis Meade CCD color filter set includes four high quality 1.25\" dichroic CCD color filters. You get separate red, green, and blue interference filters, plus an IR blocking filter. You can use the first three filters for conventional RGB imaging. If you like, you can then add a separate exposure through the IR-blocking luminance filter for more advanced LRGB imaging. You can also use the IR filter by itself for monochrome imaging.\u003c\/p\u003e\n\u003cp\u003eThese filters have multiple high transmission ion-deposited coatings on strong 3mm thick optical glass substrates. They are mounted in black anodized filter rings. The filter rings have standard 1.25\" diameter eyepiece filter threads so they can thread into any CCD camera's 1.25\" nosepiece and can be used with any standard 1.25\" color filter wheel. They are parfocal, so you do not have to re-focus when switching between filters. Each filter is packed in its own protective plastic container.\u003c\/p\u003e\n\u003cp\u003eThe filters are available separately here so you can buy a Meade Deep Sky Imager Pro or Deep Sky Imager Pro II CCD camera without filters for high-quality monochrome imaging, then add the filters later when you're ready to move up to the more challenging tri-color imaging. Buying the camera and filters separately is more expensive than buying them together as a camera\/filter set package, however. The filters are also available separately here for use with non-Meade cameras, generally at a substantial savings over the cost of buying a comparable-quality set of non-Meade filters.\u003c\/p\u003e","brand":"Meade","offers":[{"title":"Default Title","offer_id":40221652320329,"sku":"MRGB","price":49.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/11682_1.jpg?v=1662967310"},{"product_id":"38a-dark-blue-1-25-series-4000-color-filter","title":"Meade #38A Dark blue 1.25\" Series 4000 color filter","description":"\u003cp\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eTHIS PRODUCT HAS BEEN DISCONTINUED.  THIS PAGE IS HERE FOR INFORMATIONAL PURPOSES ONLY.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended applications for this filter:\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMoon -\u003c\/strong\u003e Somewhat useful for improving contrast between lunar features in scopes 8\" and larger. \u003cstrong\u003eMercury -\u003c\/strong\u003e May improve observations of rarely visible dusky surface features at twilight, when the planet is near the horizon. \u003cstrong\u003eVenus -\u003c\/strong\u003e Increases contrast of occasional faint dark shadings in upper Venusian clouds. \u003cstrong\u003eMars -\u003c\/strong\u003e Useful . . .\u003cstrong\u003eRecommended applications for this filter:\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMoon -\u003c\/strong\u003e Somewhat useful for improving contrast between lunar features in scopes 8\" and larger. \u003cstrong\u003eMercury -\u003c\/strong\u003e May improve observations of rarely visible dusky surface features at twilight, when the planet is near the horizon. \u003cstrong\u003eVenus -\u003c\/strong\u003e Increases contrast of occasional faint dark shadings in upper Venusian clouds. \u003cstrong\u003eMars -\u003c\/strong\u003e Useful for enhancing the visibility of surface features and localized dust storms, clouds, and ice fogs with 8\" or larger scopes, particularly during the still-unexplained phenomenon of violet clearing (when the Martian atmosphere - normally a bright, featureless disc in violet light due to the scattering of short wavelengths of light by the thin atmosphere - becomes transparent through a violet or blue filter, revealing large dark surface features). \u003cstrong\u003eJupiter -\u003c\/strong\u003e Primarily used for enhancing the boundaries between the reddish belts and adjacent bright zones in the upper atmosphere. Helpful in defining the Great Red Spot and festoons in the belts. \u003cstrong\u003eSaturn -\u003c\/strong\u003e Enhances low-contrast features between the belts and zones in the planetary disc. \u003cstrong\u003eComets -\u003c\/strong\u003e Brings out the best definition in comet gas tails. Useful with 10\" and larger scopes for observing orange Sodium D lines in gas tails when combined with #21 filter. \u003cbr\u003e\u003cstrong\u003e17% transmission\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e38A - Dark Blue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Meade","offers":[{"title":"Default Title","offer_id":40221657137225,"sku":"372138","price":14.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/4100_1.jpg?v=1662967480"},{"product_id":"12-4mm-series-4000-super-plossl","title":"Meade 12.4mm Series 4000 Super Plössl","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eTHIS PRODUCT HAS BEEN DISCONTINUED.  THIS PAGE IS HERE FOR INFORMATIONAL PURPOSES ONLY.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a very good quality medium to medium high power eyepiece designed for observing lunar and planetary detail, resolving globular clusters, picking up small planetary nebulas against a stellar background, etc. It essentially doubles the power of the 25mm\/26mm eyepiece that comes standard with most telescopes, so it is a good choice as a first additional eyepiece for those who do not have to wear eyeglasses when observing. It has a somewhat short eye relief that will limit the field for eyeglass wearers. Those who \u003cem\u003emust \u003c\/em\u003ewear eyeglasses while observing due to severe astigmatism would probably be better off using a Barlow and a longer focal length eyepiece with longer eye relief to reach this focal length, rather than buying this eyepiece for use on its own. It is parfocal with other Series 4000 eyepieces except the 14mm UWA, 32mm and 40mm SWA, and 40mm and 56mm Plössls. It will work well with any telescope type, at any focal ratio.\u003c\/p\u003e","brand":"Meade","offers":[{"title":"Default Title","offer_id":40221657169993,"sku":"SP12","price":29.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/4116_1.jpg?v=1662967481"},{"product_id":"18mm-cemax-1-25-enhanced-for-solar-viewing","title":"Coronado 18mm CEMAX 1.25\" Eyepiece Enhanced for Solar Viewing","description":"\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis product is discontinued and no longer for sale.  This is here for informational purposes only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe 18mm CEMAX eyepiece was designed to optimize hydrogen alpha solar viewing. To fit the full disk of the Sun into the eyepiece field, this eyepiece should be used with a telescope focal length of 1500mm or less.\u003c\/p\u003e\n\u003cp\u003eFor higher image contrast, a soft rubber eyecup shields the unaided eye from ambient light when extended. The eyecup folds down for eyeglass use. There is a safety groove cut into the 1.25\" chrome barrel. This engages the thumbscrew of the focuser to prevent the eyepiece from falling accidentally should the thumbscrew loosen during use in the heat of the day. Plastic dust caps are provided for both ends of the eyepiece. A rubber grip ring around the brass-colored body provides a sure grip in hot weather.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis eyepieces is NOT a hydrogen alpha solar filter and MUST be used in conjunction with a separate hydrogen alpha solar filter to avoid the possibility of instant and permanent eye damage!\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBarrel Size\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEye Relief\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eField of view\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Length\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e18mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4 oz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Coronado","offers":[{"title":"Default Title","offer_id":40221657530441,"sku":"CE18","price":79.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/4776_1.jpg?v=1662967497"},{"product_id":"solarmax-40mm-h-alpha-filter-with-t-max-and-10mm-blocking-filter-under-1000mm-focal-length","title":"Coronado SolarMax 40mm H-Alpha Filter with T-Max and 10mm Blocking Filter | Under 1000mm Focal Length","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis product is discontinued and no longer for sale.  This is here for informational purposes only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis 40mm aperture H-alpha filter can be used with virtually any telescope - but is designed to work best with refractor telescopes having a focal length of under 1000mm. The front filter element (containing the ERF and etalon) requires an optional custom mounting plate to attach to your specific telescope. The filter is provided with a 10mm clear aperture blocking filter mounted in a 1.25\" right angle star diagonal. This combination allows for a full solar disc image at telescope focal lengths up to 1,000 mm. For shorter focal length telescopes, the #SM40\/5 uses a 5mm clear aperture blocking filter with a which provides full disc images at focal lengths up to 500mm. For longer focal length telescopes, the #SM40\/15 uses a 15mm clear aperture blocking filter with a which provides full disc images at focal lengths up to 1500mm.\u003c\/p\u003e\n\u003cp\u003eWith catadioptric telescopes, the front filter element must be mounted off-axis to avoid being totally blocked by the telescope's secondary mirror obstruction. This would effectively limit this 40mm filter's unobstructed use with catadioptric scopes to those scopes having apertures 5\" and larger, as a 5\" Schmidt-Cassegrain has about a 44mm clear expanse between the secondary obstruction and the edge of the corrector, the minimum needed for unobstructed viewing.\u003c\/p\u003e\n\u003cp\u003eThe SolarMax \u003cem\u003ewill \u003c\/em\u003ework with the 90mm Meade ETX-90 Maksutov, as the adaptor plate holds the filter off-axis. However, the scope has only a 31mm unobstructed expanse between the secondary obstruction and the edge of the corrector, so the secondary mirror blocks a significant segment of the 40mm filter aperture, reducing contrast. In addition, the telescope would then be working at an effective focal ratio of ~f\/34, which is quite slow and yields relatively dim images. For the Meade ETX-90 Maksutov and Meade ETX-60 and ETX-70 refractors, which have a built-in star diagonal and do not have provisions for using an external diagonal such as is used with the SolarMax, Coronado has designed a special blocking filter housing to work in conjunction with these telescopes. Specify the Meade ETX-90 or ETX60\/70 blocking filter when ordering a SolarMax for these scopes. The filter's 40mm aperture and \u0026lt;0.8A bandwidth provide surprisingly good resolution and contrast and result in detailed and visually pleasing views of fine solar surface details and prominences when mounted on a good quality telescope.\u003c\/p\u003e\n\u003cp\u003eSome events on the Sun - notably active flares and coronal mass ejections (CMEs) - are extremely fast moving. If such features occur on the disc of the Sun, rather than on the limb, their high velocity towards the observer results in their wavelength being Doppler-shifted to a shorter wavelength than the H-alpha line. If the velocity is high enough, this Doppler-shifted wavelength could be outside the passband of the filter and the feature would not be observable. The SolarMax 40 comes standard with a T-Max mechanical tuning mechanism that allows the user to de-tune the SolarMax slightly from the H-alpha line to make such Doppler-shifted phenomena more visible. The T-Max fits between the SolarMax and its adapter plate, but is not shown in the image. A simple rotary wheel movement accomplishes the tilt necessary to move the passband of the filter. Because of the filter's position at the front end of the telescope, this does not compromise the performance of the filter nor limit the H-alpha field of view as is the case with rear mounted filters.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Coronado","offers":[{"title":"Default Title","offer_id":40221658316873,"sku":"SM4010","price":1099.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/7729_1.jpg?v=1662967531"},{"product_id":"solarmax-40mm-h-alpha-filter-with-t-max-and-15mm-blocking-filter-under-1500mm-focal-length","title":"Coronado SolarMax 40mm H-Alpha Filter with T-Max and 15mm Blocking Filter | Under 1500mm Focal Length","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis product is discontinued and no longer for sale.  This is here for informational purposes only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis 40mm aperture H-alpha filter can be used with virtually any telescope - but is designed to work best with telescopes having a focal length up to 1500mm. The front filter element (containing the ERF and etalon) requires an optional custom mounting plate to attach to your specific telescope. The filter is provided with a 15mm clear aperture blocking filter mounted in a 1.25\" right angle star diagonal. This combination allows for a full solar disc image at telescope focal lengths up to 1,500 mm.\u003c\/p\u003e\n\u003cp\u003eWith catadioptric telescopes, the front filter element must be mounted off-axis to avoid being totally blocked by the telescope's secondary mirror obstruction. This would effectively limit this 40mm filter's unobstructed use with catadioptric scopes to those scopes having apertures 5\" and larger, as a 5\" Schmidt-Cassegrain has about a 44mm clear expanse between the secondary obstruction and the edge of the corrector, the minimum needed for unobstructed viewing.\u003c\/p\u003e\n\u003cp\u003eThe SolarMax \u003cem\u003ewill \u003c\/em\u003ework with the 90mm Meade ETX-90 Maksutov, as the adaptor plate holds the filter off-axis. However, the scope has only a 31mm unobstructed expanse between the secondary obstruction and the edge of the corrector, so the secondary mirror blocks a significant segment of the 40mm filter aperture, reducing contrast. In addition, the telescope would then be working at an effective focal ratio of ~f\/34, which is quite slow and yields relatively dim images. For the Meade ETX-90 Maksutov and Meade ETX-60 and ETX-70 refractors, which have a built-in star diagonal and do not have provisions for using an external diagonal such as is used with the SolarMax, Coronado has designed a special blocking filter housing to work in conjunction with these telescopes. Specify the Meade ETX-90 or ETX60\/70 blocking filter when ordering a SolarMax for these scopes. The filter's 40mm aperture and \u0026lt;0.8A bandwidth provide surprisingly good resolution and contrast and result in detailed and visually pleasing views of fine solar surface details and prominences when mounted on a good quality telescope.\u003c\/p\u003e\n\u003cp\u003eSome events on the Sun - notably active flares and coronal mass ejections (CMEs) - are extremely fast moving. If such features occur on the disc of the Sun, rather than on the limb, their high velocity towards the observer results in their wavelength being Doppler-shifted to a shorter wavelength than the H-alpha line. If the velocity is high enough, this Doppler-shifted wavelength could be outside the passband of the filter and the feature would not be observable. The SolarMax 40 comes standard with a T-Max mechanical tuning mechanism that allows the user to de-tune the SolarMax slightly from the H-alpha line to make such Doppler-shifted phenomena more visible. The T-Max fits between the SolarMax and its adapter plate. A simple rotary wheel movement accomplishes the tilt necessary to move the passband of the filter. Because of the filter's position at the front end of the telescope, this does not compromise the performance of the filter nor limit the H-alpha field of view as is the case with rear mounted filters.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Coronado","offers":[{"title":"Default Title","offer_id":40221658349641,"sku":"SM4015","price":1299.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/7732_1.jpg?v=1662967533"},{"product_id":"solarmax-60mm-h-alpha-filter-with-t-max-and-10mm-blocking-filter-under-1000mm-focal-length","title":"Coronado SolarMax 60mm H-Alpha Filter with T-Max and 10mm Blocking Filter | Under 1000mm Focal Length","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis product is discontinued and no longer for sale.  This is here for informational purposes only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis 60mm aperture H-alpha filter can be used with virtually any refractor telescope having a 60mm or greater aperture - but is designed to work best with telescopes having a focal length of 1000mm and under. The front filter element (containing the ERF and etalon) is threaded to mount directly into the front cell of the TeleVue Pronto refractor, and works particularly well with this scope, but will require an optional custom mounting plate for installation on other telescopes. This filter's 60mm aperture and \u0026lt;0.7A bandwidth provide very high resolution and contrast and result in excellent views of fine surface details and prominences when mounted on a good quality short focal length refractor telescope. This filter package is provided with a 10mm clear aperture blocking filter with a mounted in a 1.25\" right angle star diagonal. With such a combination on a scope longer in focal length than 1000mm, you might not be able to achieve a full disc solar image and would be limited to visual and photographic explorations of only portions of the Sun's surface at a time. The SM60\/15 combination, with a 15mm clear aperture blocking filter in a 1.25\" diagonal, would be a better choice with scopes up to 1500mm if full disk views are desired.\u003c\/p\u003e\n\u003cp\u003eThe SM60\/30 combination, with a 2\" straight-through 30mm clear aperture blocking filter, would be a better choice with very long focal length scopes if full disk views are desired.\u003c\/p\u003e\n\u003cp\u003eSome events on the Sun - notably active flares and coronal mass ejections (CMEs) - are extremely fast moving. If such features occur on the disc of the Sun, rather than on the limb, their high velocity towards the observer results in their wavelength being Doppler-shifted to a shorter wavelength than the H-alpha line. If the velocity is high enough, this Doppler-shifted wavelength could be outside the passband of the filter and the feature would not be observable. The filter includes a T-Max mechanical tuning mechanism that allows the user to de-tune the SolarMax slightly from the H-alpha line to make such Doppler-shifted phenomena more visible. The T-Max fits between the SolarMax and its adapter plate at the front of the scope, but is not shown in the image. A simple rotary wheel movement accomplishes the tilt necessary to move the passband of the filter. Because of the filter's position at the front end of the telescope, this does not compromise the performance of the filter nor limit the H-alpha field of view as is the case with rear mounted filters.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Coronado","offers":[{"title":"Default Title","offer_id":40221658382409,"sku":"SM6010","price":1399.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/7734_1.jpg?v=1662967534"},{"product_id":"solarmax-60mm-h-alpha-filter-with-t-max-and-15mm-blocking-filter-under-1500mm-focal-length","title":"Coronado SolarMax 60mm H-Alpha Filter with T-Max and 15mm Blocking Filter | Under 1500mm Focal Length","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis product is discontinued and no longer for sale.  This is here for informational purposes only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis 60mm aperture H-alpha filter can be used with virtually any refractor telescope having a 60mm or greater aperture - but is designed to work best with telescopes having a focal length of 1500mm and under. The front filter element (containing the ERF and etalon) is threaded to mount directly into the front cell of the TeleVue Pronto refractor, and works particularly well with this scope, but will require an optional custom mounting plate for installation on other telescopes. With catadioptric telescopes, the front filter element must be mounted off-axis to avoid being totally blocked by the telescope's secondary obstruction. This would effectively limit this 60mm filter's use with catadioptric scopes to those with apertures 8\" and larger, as an 8\" Schmidt-Cassegrain has about a 64mm clear expanse between the secondary obstruction and the edge of the corrector. A 5\" catadioptric, on the other hand, has only about a 44mm clear expanse and would partially block the filter. This filter's 60mm aperture and \u0026lt;0.7A bandwidth provide very high resolution and contrast and result in excellent views of fine surface details and prominences when mounted on a good quality telescope. This filter package is provided with a 15mm clear aperture blocking filter with a mounted in a 1.25\" right angle star diagonal. With such a combination on a long focal length catadioptric scope (2000mm and up), you might not be able to achieve a full disc solar image and would be limited to visual and photographic explorations of only portions of the Sun's surface at a time. The SM60\/30 combination, with a 2\" straight-through 30mm clear aperture blocking filter, would be a better choice with very long focal length scopes if full disk views are desired.\u003c\/p\u003e\n\u003cp\u003eSome events on the Sun - notably active flares and coronal mass ejections (CMEs) - are extremely fast moving. If such features occur on the disc of the Sun, rather than on the limb, their high velocity towards the observer results in their wavelength being Doppler-shifted to a shorter wavelength than the H-alpha line. If the velocity is high enough, this Doppler-shifted wavelength could be outside the passband of the filter and the feature would not be observable. Coronado includes a T-Max mechanical tuning mechanism with the filter to allow the user to de-tune the SolarMax slightly from the H-alpha line to make such Doppler-shifted phenomena more visible. The T-Max fits between the SolarMax and its adapter plate at the front of the scope, but is not shown in the image. A simple rotary wheel movement accomplishes the tilt necessary to move the passband of the filter. Because of the filter's position at the front end of the telescope, this does not compromise the performance of the filter nor limit the H-alpha field of view as is the case with rear mounted filters.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Coronado","offers":[{"title":"Default Title","offer_id":40221658415177,"sku":"SM6015","price":1599.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/7735_1.jpg?v=1662967536"},{"product_id":"solarmax-60mm-h-alpha-filter-with-t-max-30mm-2-blocking-filter-under-3000mm-focal-length","title":"Coronado SolarMax 60mm H-Alpha Filter with T-Max \u0026 30mm 2\" Blocking Filter | Under 3000mm Focal Length","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis product is discontinued and no longer for sale.  This is here for informational purposes only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis 60mm aperture H-alpha filter can be used with virtually any telescope having a 60mm or greater aperture - but is designed to work best with telescopes having a focal length of under 3000mm. The front filter element (containing the ERF and etalon) is threaded to mount directly into the front cell of the TeleVue Pronto refractor, and works particularly well with this scope, but will require an optional custom mounting plate for installation on other telescopes. With catadioptric telescopes, the front filter element must be mounted off-axis to avoid being totally blocked by the telescope's secondary obstruction. This would effectively limit this 60mm filter's use with catadioptric scopes to those with apertures 8\" and larger, as an 8\" Schmidt-Cassegrain has about a 64mm clear expanse between the secondary obstruction and the edge of the corrector. A 5\" catadioptric, on the other hand, has only about a 44mm clear expanse and would partially block the filter. This filter's 60mm aperture and \u0026lt;0.7A bandwidth provide very high resolution and contrast and result in excellent views of fine surface details and prominences when mounted on a good quality telescope. This package is provided with a 2\" straight-through 30mm clear aperture blocking filter with a for use with 2\" star diagonals and accessories or where full disc viewing is required on telescopes with a focal length under 3000mm.\u003c\/p\u003e\n\u003cp\u003eSome events on the Sun - notably active flares and coronal mass ejections (CMEs) - are extremely fast moving. If such features occur on the disc of the Sun, rather than on the limb, their high velocity towards the observer results in their wavelength being Doppler-shifted to a shorter wavelength than the H-alpha line. If the velocity is high enough, this Doppler-shifted wavelength could be outside the passband of the filter and the feature would not be observable. Coronado includes a T-Max mechanical tuning mechanism with the filter to allow the user to de-tune the SolarMax slightly from the H-alpha line to make such Doppler-shifted phenomena more visible. The T-Max fits between the SolarMax and its adaptor plate at the front of the scope, but is not show in the image. A simple rotary wheel movement accomplishes the tilt necessary to move the passband of the filter. Because of the filter's position at the front end of the telescope, this does not compromise the performance of the filter nor limit the H-alpha field of view as is the case with rear mounted filters.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Coronado","offers":[{"title":"Default Title","offer_id":40221658447945,"sku":"SM6030","price":2499.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/7736_1.jpg?v=1662967537"},{"product_id":"0-25-diopter-dioptrx-astigmatism-correcting-lens","title":"TeleVue 0.25 Diopter Dioptrx Astigmatism-Correcting Lens","description":"\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis product has been discontinued and is no longer available for sale.  This is here for informational purposes only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis Dioptrx accessory lens corrects for an astigmatism of 0.25 diopter. (This would be a\"CYL\" value of 0.25 in your eyeglass prescription.)  The lens rotates to match the orientation of your astigmatism, whether it is orthogonal (up and down) or oblique (at any angle intermediate between vertical and horizontal).\u003c\/p\u003e\n\u003cp\u003eThe lens replaces the rubber eyeguard at the top of any of the following long eye relief TeleVue eyepieces only: 26mm and 31mm Nagler type 5; 22mm, 27mm, 35mm, and 41mm Panoptic; 22mm, 40mm, and 55mm Plössl; all Radians (18mm thru 3mm); and all Nagler type 4 (22mm, 17mm, and 12mm). An adapter (\u003ca href=\"\/televue-adapter-dioptrx-lenses-19mm-24mm-panoptic-20mm-type-5-nagler-eyepieces_p13691.aspx\"\u003eDEA0001\u003c\/a\u003e) is available to allow its use in 19mm and 24mm Panoptic eyepieces or the 20mm Type 5 Nagler. A separate adapter (\u003ca href=\"\/televue-adapter-dioptrx-lenses-type-6-nagler-eyepieces_p13692.aspx\"\u003eDNA6000\u003c\/a\u003e) is available to allow its use in all Type 6 Naglers.\u003c\/p\u003e\n\u003cp\u003eThe lens is precision-ground from optical glass, multicoated, and mounted in an anodized aluminum housing that locks into place on your eyepiece. A rubber eyeguard tops the Dioptrx lens.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e3 oz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":40221658841161,"sku":"DRX0025","price":109.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/9313_1.jpg?v=1662967556"},{"product_id":"1-75-diopter-dioptrx-astigmatism-correcting-lens","title":"TeleVue 1.75 Diopter Dioptrx Astigmatism-Correcting Lens","description":"\u003cp\u003eThis product has been discontinued and is no longer available for sale.  This is here for informational purposes only.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis accessory lens corrects for 1.75 diopters of astigmatism when used with the appropriate TeleVue eyepiece . . .This Dioptrx accessory lens corrects for an astigmatism of 1.75 diopters. \u003cspan style=\"font-size: 10.909090995788574px;\"\u003e(This would be a\"CYL\" value of 1.75 in your eyeglass prescription.)  \u003c\/span\u003eThe lens rotates to match the orientation of your astigmatism, whether it is orthogonal (up and down) or oblique (at any angle intermediate between vertical and horizontal).\u003c\/p\u003e\n\u003cp\u003eThe lens replaces the rubber eyeguard at the top of any of the following long eye relief TeleVue eyepieces only: 26mm and 31mm Nagler type 5; 22mm, 27mm, 35mm, and 41mm Panoptic; 22mm, 40mm, and 55mm Plössl; all Radians (18mm thru 3mm); and all Nagler type 4 (22mm, 17mm, and 12mm). An adapter (\u003ca href=\"\/televue-adapter-dioptrx-lenses-19mm-24mm-panoptic-20mm-type-5-nagler-eyepieces_p13691.aspx\"\u003eDEA0001\u003c\/a\u003e) is available to allow its use in 19mm and 24mm Panoptic eyepieces or the 20mm Type 5 Nagler. A separate adapter (\u003ca href=\"\/televue-adapter-dioptrx-lenses-type-6-nagler-eyepieces_p13692.aspx\"\u003eDNA6000\u003c\/a\u003e) is available to allow its use in all Type 6 Naglers.\u003c\/p\u003e\n\u003cp\u003eThe lens is precision-ground from optical glass, multicoated, and mounted in an anodized aluminum housing that locks into place on your eyepiece. A rubber eyeguard tops the Dioptrx lens.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e3 oz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":40221659005001,"sku":"DRX0175","price":109.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/9319_1.jpg?v=1662967564"},{"product_id":"2-99-reflectivity-dielectric-mirror-diagonal-with-1-25-adapter","title":"Meade 2\" 99% Reflectivity dielectric mirror diagonal, with 1.25\" adapter","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eTHIS PRODUCT HAS BEEN DISCONTINUED.  THIS PAGE IS HERE FOR INFORMATIONAL PURPOSES ONLY.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eThis precision 2\" first-surface mirror 90° star diagonal uses premium dielectric coatings for an exceptionally high 99% reflectivity for brighter images of faint objects. In addition to higher reflectivity than a conventional aluminum or silver coated diagonal, the dielectric coatings also provide higher contrast and resolution during critical planetary, lunar, and binary star observations.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eA safety stop at the bottom of the 2\" eyepiece holder tube prevents 2\" eyepieces or 2\" Barlows from hitting the surface of the mirror. The diagonal comes with a 2\" to 1.25\" adapter to allow the use of 1.25\" eyepieces. Both the 2\" eyepiece barrel and the 1.25\" adapter use soft non-marring brass clamp rings to hold eyepieces in place, rather than metal thumbscrews that can gouge the chrome barrels of your eyepieces. The clamp rings themselves are tightened by large knurled thumbscrews that are easy to operate, even when wearing gloves in cold weather. \u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe 2\" barrel that slips into the focuser or visual back and the 1.25\" adapter are internally antireflection threaded for higher contrast. They are also threaded to accept standard 2\" (48mm) filters. Grooves cut into the outside of the 2\" barrel and the 1.25\" adapter act as safety stops to keep the diagonal or adapter from falling should the scope's visual back or eyepiece holder thumbscrew loosen slightly during use.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe diagonal is designed for refractors with 2\" focuser drawtubes and for those Meade LX200GPS models using the Meade electric Microfocuser. It will also work with other Schmidt-Cassegrains by using the supplied SCT rear cell adapter.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThis premium 2\" diagonal is visibly superior in reflectivity, optical quality, and mechanical workmanship to the economy and mid-priced 2\" diagonals available from other manufacturers. It's a worthy upgrade to virtually any Schmidt-Cassegrain, Maksutov-Cassegrain, or refractor that can use a 2\" star diagonal.\u003c\/div\u003e","brand":"Meade","offers":[{"title":"Default Title","offer_id":40221659627593,"sku":"5000D2","price":169.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/10626_1.jpg?v=1662967576"},{"product_id":"fsq-106ed-new-q-4-2-f-5-dual-ed-four-element-design","title":"Takahashi FSQ-106EDX4 4.2\" F\/5 Dual ED\/Four Element Optical Tube","description":"\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis product has been discontinued and is no longer for sale.  This is here for informational purposes only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis Takahashi FSQ-106EDX4 quadruplet is the ultimate portable no-compromise photo\/visual refractor.\u003c\/p\u003e\n\u003cp\u003eThe Takahashi FSQ-106EDX4 quadruplet is a redesign of the FSQ-106, the workhorse of the Takahashi imaging refractor line. Its redesigned four-element double ED element modified Petzval optics have been optimized for imaging as well as visual applications. It is measurably the best no-compromise portable photo-visual refractor Takahashi has ever built, and they've built a lot of \u003cem\u003every \u003c\/em\u003egood scopes over the years.\u003c\/p\u003e\n\u003cp\u003eThe FSQ-106ED is a 4.2\" aperture f\/5 (530mm focal length) four-lens photo\/visual system using two ED (Extra-low Dispersion) glass elements. Based on the classic two-doublet Petzval design, the FSQ-106ED takes full advantage of the latest exotic glass types to produce levels of correction for coma, astigmatism, field curvature, secondary spectrum, spherical aberration, and spherochromatism that are unsurpassed - even better than their legendary fluorite scopes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis Telescope's Optical System . . .\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eApochromatic modified Petzval refractor optical system: \u003c\/strong\u003e4.2\" aperture f\/5 (530mm focal length) four-lens fully-multicoated system using two ED (Extra-low Dispersion) glass elements. The modified Petzval design uses a true apochromatic doublet objective lens with an ED element to gather the light. For most telescope manufacturers, this would be enough. But Takahashi goes a step further to perfect your observing and imaging experience. There is a second widely air-spaced ED doublet within the focuser drawtube itself. This second doublet optimizes the optical wavefront from the objective lens to eliminate any residual astigmatism. It also acts as a field flattener for wide field astrophotography. The result is a very wide and flat field with high contrast images that are without any hint of lateral color. Color correction has been extended to 1000nm, well into the infrared, to produce non-bloated photographic star images\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Image Circle: \u003c\/strong\u003eAt prime focus the 88mm image circle covers a huge swathe of the sky measuring 9.5° in diameter. The large image circle will fully illuminate any 35mm, 645, or 6x7 medium format film camera; any vacuum back roll film holder; or any of the large format commercial grade CCD cameras available now or in the near future. Light fall-off is minor. The field is 90% illuminated at a 53mm diameter (a 35mm negative and the largest currently available SBIG Research Series chip measure only 44mm across their diagonals). It is still 67% illuminated at the edges of the 88mm image circle, an illumination that is easily compensated for with a CCD imager by a simple flat field.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Back Focus: \u003c\/strong\u003eThe generous back focus of 178mm allows the user to attach a variety of imaging packages, binoviewers, 2\" star diagonals, and many other visual devices. The 178mm back focus has been designed to handle the ever-larger image trains of CCD imaging experts - electric focusers or temperature compensated focusers, flip mirror systems, filter wheels, adaptive optics systems, etc.\u003c\/li\u003e\n\u003cli\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional Focal Extender: \u003c\/strong\u003e If you need a slower system, an optional 1.6x 2\" Extender-QE designed specifically for the new FSQ-106EDX4 converts the f\/5 scope to a more high magnification-friendly f\/8 system. It provides a 44mmm image circle with a 3° field of view.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e\u003cstrong\u003eThis Telescope's Mechanical System . . .\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Optical Tube: \u003c\/strong\u003eThe all-aluminum 125mm diameter scope body is finished in ivory, with black trim, and is very solidly built. Knife-edge baffles within the tube block off-axis light for high contrast and dark sky backgrounds. The tube length of only 16.7\" with the dew shield retracted allows the \"Q\" to be highly airline-transportable. Even when the dew shield is extended the total length is only 20.5\". \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocuser: \u003c\/strong\u003eThe focuser is a new ultra-duty 4\" rack-and-pinion design with both 2\" and 1.25\" eyepiece adapters. The focuser has a silky-smooth motion and oversize knobs that make it easy to achieve sharp focus, even at very high powers. The focuser includes a 10:1 ratio Micro Edge fine focuser for critical high magnification and photographic focusing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera angle adjuster: \u003c\/strong\u003eThe focuser includes a new built-in camera angle adjuster\/rotator that will carry a 5kg (11 lb.) load to handle the weight of the new large chip CCD cameras and their associated accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDew shield: \u003c\/strong\u003eThe optical tube has a retractable self-storing dew shield. A thumbscrew locks the dew shield in place, either when extended or when retracted. The dew shield serves the dual purpose of retarding the formation of dew during long observing sessions and improving the photo\/visual contrast, much as a camera lens shade does.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTech Details:\u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAperture\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4.2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Length\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e530mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Ratio\u003c\/th\u003e\n\u003ctd class=\"data\"\u003ef\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHighest Useful Magnification\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e212x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e15 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResolution\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1.09 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTelescope Type\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eRefractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVisual Limiting Magnitude\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e11.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/blockquote\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":40221660774473,"sku":"FSQ106X","price":7330.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/13940.jpg?v=1662967625"},{"product_id":"universal-afocal-digital-camera-adapter-for-1-25-and-2-eyepieces","title":"Celestron Universal Afocal Digital Camera Adapter for 1.25\" and 2\" Eyepieces","description":"\u003cp\u003eThis Celestron universal digital camera adapter allows you to do astrophotography with a digital (point and shoot-type) camera. It turns your 1.25\" or 2\" eyepiece telescope into a very high power telephoto lens for digiscoping with those cameras that have non-removable lenses, which normally can't be used for astrophotography. The Celestron adapter allows very high magnification lunar and planetary afocal photography (photography through the telescope eyepiece). The Celestron adapter also works with most straight-through and 45° angled spotting scopes for terrestrial nature photography.\u003c\/p\u003e\n\u003cp\u003ePrefocus your telescope on the Moon or a planet by eye before putting on the Celestron adapter. The adapter has a six-sided jaw that clamps firmly onto your telescope eyepiece. It will fit virtually any 1.25\" and 2\" eyepiece up to 60mm (2-11\/32\") in outer diameter. Behind the jaw is a platform to which your camera is bolted using the camera's standard 1\/4\"-20 thread tripod mounting hole. The platform has two slots for the camera attachment bolt. Use whichever slot comes closest to putting the camera lens directly behind the eyepiece.\u003c\/p\u003e\n\u003cp\u003eThe camera platform has micrometer adjustment knobs to adjust it up or down and right or left. All of these adjustments allow you to center your camera lens precisely on the optical axis (center line) of the telescope eyepiece and lock it in place. This assures that your eyepiece image fully covers the camera's imaging chip with no vignetting.\u003c\/p\u003e\n\u003cp\u003eThe camera's autofocus mechanism focuses the camera sharply on the high power lunar or planetary image you've already composed and prefocused in the telescope by eye. You can also zoom in and out on the eyepiece image using your camera's zoom controls for a closer or wider angle view. The photographic magnification and field of view will vary, depending on the telescope, eyepiece focal length, the camera used, and the zoom setting of the camera lens. The magnification will be quite high in any case, since you are multiplying the magnification of the spotting scope by the magnification of the camera's zoom.\u003c\/p\u003e\n\u003cp\u003eOnce the adapter is centered on your eyepiece, you won't have to readjust it if you take the camera and adapter off your telescope for visual use. Simply loosen the knob that tightens the jaw and slip the entire camera\/adapter assembly off the eyepiece. When you're ready to take pictures again, slip the entire assembly back on the eyepiece, tighten the jaw on the eyepiece, and you're once again aligned and ready to shoot.\u003c\/p\u003e\n\u003cp\u003eThe Moon generally will more than fill the field of view of the camera. When the camera is set at the extreme wide angle end of its zoom range, there may be some vignetting of the lunar image (the image will be round and framed in black, rather than rectangular). In such cases, zoom out slightly to eliminate the vignetting.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e14.5 oz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":40221661134921,"sku":"CDCA","price":49.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/14075.jpg?v=1662967630"},{"product_id":"1-micron-digital-fine-focus-indicator-kit-for-2-4-focuser-televue-imaging-system-refractors","title":"TeleVue 1 Micron Digital Fine Focus Indicator Kit for 2.4\" Focuser TeleVue Imaging System Refractors","description":"\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis product has been discontinued and is no longer availalbe for sale.  This is here for informational purposes only.  \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis TeleVue 1 micron digital indicator kit for Imaging System refractors lets you index exact focus positions with an astonishing 1 micron (1\/10,000\") accuracy for CCD photography. It is designed for use with the 2.4\" focuser TeleVue Imaging System refractors. These have pre-drilled indicator mounting holes in the top of their focuser bodies and drawtubes to accept the indicator kit components. These scopes include the TV-102iis, NP-101is, and the NP-127is.\u003c\/p\u003e\n\u003cp\u003eThe easily-installed digital indicator accurately reads out the focuser drawtube position on an illuminated display over a full 0.5\" of focuser drawtube travel. It can also display the indicator readout on your computer by adding the optional 10' \u003ca href=\"\/televue-10-digital-indicator-kit-to-computer-cable_p14598.aspx\"\u003eTeleVue RS-232 cable #TVIKCAB\u003c\/a\u003e and using the free \u003ca href=\"http:\/\/www.televue.com\/engine\/page.asp?ID=288\"\u003eTVFocus software\u003c\/a\u003e available from TeleVue .\u003c\/p\u003e\n\u003cp\u003eThe main component of the kit is the battery-powered digital readout module. This has a compressing\/expanding plunger that tells the readout module the focuser drawtube's exact position. The readout module sits on a slide that is attached to the top of the focuser body using the supplied hardware. A plunger receptacle is attached to the top of the focuser drawtube. The scope is set at the approximate correct focus and the position of the readout module adjusted by moving the module slide until the tip of the spring-loaded plunger makes contact with the cone-shaped interior of the plunger receptacle. The spring-loading assures a firm and constant contact between the plunger tip and its receptacle. The readout module is zeroed out. Then, as you fine-tune the focuser position in and out over a +\/- 0.25\" range, the plunger follows the motion of the focuser and the focuser's +\/- distance from that zero position shows on the illuminated readout.\u003c\/p\u003e\n\u003cp\u003eThe mechanical positions of the readout module\/plunger and plunger receptacle are saved after your first imaging session so that you can easily return to the same focuser positions during subsequent sessions.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":40221662085193,"sku":"TVIK124","price":630.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/14595.jpg?v=1662967668"},{"product_id":"10-digital-indicator-kit-to-computer-cable","title":"TeleVue 10' Digital Indicator Kit to Computer Cable","description":"\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis product has been discontinued and is no longer available for sale.  This is here for informational purposes only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis 10' RS-232 serial cable and adapter allows the focuser position readout of a TeleVue digital indicator kit to be displayed on your computer screen using the free \u003ca href=\"http:\/\/www.televue.com\/engine\/page.asp?ID=288\"\u003eTVFocus software\u003c\/a\u003e available from TeleVue. The cable also supplies power to the digital indicator from your computer through the special indicator adapter interface module that comes with the cable. The cable needs a free serial port on your computer, or a USB port and a user-supplied USB to serial adapter.\u003c\/p\u003e\n\u003cp\u003eThe TVFocus software provides continuous or momentary position readout, in a standard screen or night vision format. It lets you save up to four preset positions between sessions, which is handy if you swap non-parfocal eyepieces or use various filters for imaging that change the point of best focus. The software displays yellow and green indicators on your computer screen when you are approaching or have achieved a preset focus position, and zero reset allows you to zero the indicator at any point.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003cbr\u003e\n\u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":40221662150729,"sku":"TVIKCAB","price":195.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/14598.jpg?v=1662967670"},{"product_id":"focusmaster-computer-interface","title":"TeleVue Focusmaster Computer interface","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis product has been discontinued and is no longer for sale.  This is here for informational purposes only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe TeleVue Focusmaster is the link that gives you computer readout and control of an optional TeleVue Digital Indicator Kit and Focusmate electronic focuser Driver. Focusmaster was designed to be easy and convenient to use, from its in-line connectors which allow easy draping of cables, to its TVFocusPlus display\/control software. Focusmaster is compatible with ASCOM compliant focusing software.\u003c\/p\u003e\n\u003cp\u003eThe Focusmaster has a USB port (cable included) for connection to your computer. Your computer then supplies power to the Focusmaster through the USB cable, so no extra power cable or power supply is needed for the Focusmaster. There is a separate RS-232 port to connect to an optional TeleVue Digital Indicator kit using an optional RS-232 cable. In addition, there is an RJ22 port for connecting to a TeleVue Focusmate Driver, using the Driver cable that is normally used to connect the Driver to its hand control. There is also a red\/green status LED on the Focusmaster.\u003c\/p\u003e\n\u003cp\u003eThe TVFocusPlus software provides continuous or momentary position readout on your computer screen, in a standard screen or night vision format. It lets you save preset focus positions between observing sessions, which is handy if you swap non-parfocal eyepieces or use various imaging filters that change the point of best focus. The software displays yellow and green indicators on your computer screen when you are approaching or have achieved a preset focus position, and zero reset allows you to zero the indicator at any point. The software allows continuous or momentary motor motion in both directions from your computer keyboard, as well as full control over the focus motor speed.\u003c\/p\u003e\n\u003cp\u003eThe system requires that you have an optional TeleVue Focusmate and Focusmate Driver installed on your telescope. Your computer operating system should be Windows 98SE\/Me\/NT\/2000\/XP or greater and your computer should have a free USB port. Recommended optional accessories include a TeleVue Digital indicator kit and a TeleVue \u003ca href=\"\/televue-10-digital-indicator-kit-to-computer-cable_p14598.aspx\"\u003e#TVIKCAB\u003c\/a\u003e Digital Indicator to computer RS-232 cable.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":40221662183497,"sku":"TVFOMAST","price":195.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/14600.jpg?v=1662967672"},{"product_id":"counterweight-system-for-celestron-8-meade-8-scts","title":"Losmandy Counterweight system for Celestron 8\"\/Meade 8\" SCTs","description":"\u003cp\u003e\u003cspan style=\"color: rgb(153, 0, 0);\"\u003e\u003cstrong\u003eDISCONTINUED. ORDERS CANNOT BE FILLED\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThis complete counterweight system fits fork mount Celestron 8\" and Meade 8\" Schmidt-Cassegrain telescopes. It has dual axis counterweight motion, both fore and aft along the telescope tube and closer to the tube or further away, giving you greater flexibility in balancing accessory loads. Its lighter single counterweight can balance heavier loads than conventional counterweight systems because of this unique design.\n\u003cp\u003eThe counterweight system consists of a black anodized aluminum dovetail bar that extends along the underside of the telescope optical tube, all appropriate mounting hardware, and a 2.5 pound dovetail-mounted counterweight. The appropriate stainless steel hardware for your particular scope is used to attach the dovetail bar to existing holes in the front and rear cells of the scope at the 6 o'clock positions. A Phillips head screwdriver is the only tool required.\u003c\/p\u003e\n\u003cp\u003eThe Celestron C8 requires an optional #VCB8 adapter block set if the spacing between the two holes in the rear cell is 1.75\".\u003c\/p\u003e\n\u003cp\u003eThe long threaded rod with a dovetail at one end is slipped onto the installed dovetail bar. The 2.5 pound counterweight is threaded onto the rod and the position of the rod along the telescope tube and the distance of the weight below the tube is adjusted until the accessory load is balanced. A large no-tool handle on the threaded shaft securely locks the rod in place at any desired location along the dovetail bar.\u003c\/p\u003e\n\u003cp\u003eIf extremely heavy loads need to be balanced, optional extra 2.5 pound and 5 pound threaded counterweights are available. The dovetail bar measures 13.5\" in length. The total weight of the counterweight system is 4 pounds.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Losmandy","offers":[{"title":"Default Title","offer_id":40221662773321,"sku":"VWS13","price":103.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/14996.jpg?v=1662967684"},{"product_id":"counterweight-system-for-celestron-9-and-11-scts-meade-10-scts-and-meade-7-maksutovs","title":"Losmandy Counterweight system for Celestron 9¼\" and 11\" SCTs\/Meade 10\" SCTs and Meade 7\" Maksutovs","description":"\u003cp\u003e\u003cspan style=\"color: rgb(153, 0, 0);\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eThis Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003eThis complete counterweight system fits fork mount Celestron 9¼\" and 11\", and Meade 10\" Schmidt-Cassegrain and Advanced Coma-Free telescopes, plus Meade 7\" Maksutov-Cassegrains. It will only work with current model 9¼\" Celestrons that have 16.5\" mounting hole spacing between their front and rear cells. It will not work with older 9¼\" Celestron scopes with 17.25\" spacing. Use part \u003ca href=\"\/losmandy-counterweight-system-celestron-9-25-inch-sct_p8504.aspx\"\u003e#WS9\u003c\/a\u003e for such scopes. In addition, the Celestron C11 requires an optional #VCB11 adapter block set if the spacing between the two holes in the rear cell is 1.75\".\n\u003cp\u003eThe counterweight system has dual axis counterweight motion, both fore and aft along the telescope tube and closer to the tube or further away, giving you greater flexibility in balancing accessory loads. Its lighter single counterweight can balance heavier loads than conventional counterweight systems because of this unique design.\u003c\/p\u003e\n\u003cp\u003eThe counterweight system consists of a black anodized aluminum dovetail bar that extends along the underside of the telescope optical tube, all appropriate mounting hardware, and a 2.5 pound dovetail-mounted counterweight. A Phillips head screwdriver is the only tool required to install the counterweight system and no tools are needed to adjust it during use.\u003c\/p\u003e\n\u003cp\u003eThe long threaded rod with a dovetail at one end is slipped onto the installed dovetail bar. The 2.5 pound counterweight is threaded onto the rod and the position of the rod along the telescope tube and the distance of the weight below the tube is adjusted until the accessory load is balanced. A large no-tool handle on the threaded shaft securely locks the rod in place at any desired location along the dovetail bar.\u003c\/p\u003e\n\u003cp\u003eIf extremely heavy loads need to be balanced, optional extra 2.5 pound and 5 pound threaded counterweights are available. The dovetail bar measures 17.25\" in length. The total weight of the counterweight system is 4.2 pounds.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Losmandy","offers":[{"title":"Default Title","offer_id":40221662806089,"sku":"VWS17","price":103.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/14997.jpg?v=1662967686"},{"product_id":"losmandy-curved-mounting-blocks-to-use-11-celestrons-having-1-75-rear-cell-hole-spacing","title":"Losmandy Curved Mounting Blocks to Use 11\" Celestrons Having 1.75\" Rear Cell Hole Spacing","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese Losmandy curved adapter blocks let you use the Losmandy #VSCT17 dovetail and #VWS17 counterweight set with Celestron 11\" optical tubes that have dual mounting holes spaced 1.75\" apart on the rear cell. The set has two blocks (one for the front cell, one for the rear) to keep the dovetail parallel to the optical tube. Made of machined aluminum, anodized black, with stainless steel hardware.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4 oz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Losmandy","offers":[{"title":"Default Title","offer_id":40221663658057,"sku":"VCB11","price":25.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/15431.jpg?v=1662967710"},{"product_id":"celestron-8x56mm-skymaster-dx","title":"Celestron 8X56mm SkyMaster DX Binocular","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis Celestron 8 x 56mm SkyMaster DX has a wide 5.8° field and a very bright 7mm exit pupil. These virtues make it ideal for serious wide field astronomical viewing. You can sweep the star clouds of Sagittarius, search out the Great Galaxy M31 in Andromeda and the Pinwheel Galaxy M33 in Triangulum, and revel in globular clusters like M13 and M22. The SkyMaster DX uses high light transmission BaK-4 prisms and fully multicoated optics for bright images of faint deep space objects, particularly from a truly dark sky observing site. While it offers quite nice astronomical viewing on its own, it also makes a good wide-field observing complement to the narrower field of a telescope.\u003c\/p\u003e\n\u003cp\u003eThe optical performance is surprisingly good, particularly in view of its large aperture and very sensible price. The optics are fully multicoated on all air-to-glass surfaces for high light transmission. The field of view is respectably flat. Astigmatism, distortion, and chromatic aberration at the edges of the field are well controlled. This makes for clean and expansive views of open clusters like the Beehive and the Wild Duck, with point-like stars to the edges of the field, as well as fascinating sights like the Double Cluster in Perseus.\u003c\/p\u003e\n\u003cp\u003eAt 38 ounces, the SkyMaster DX is rather heavy. We recommend using it on a camera tripod for the sharpest images, as few people will have the wrist strength needed to hold it steady for extended hand-held use. A 1\/4\"-20 thread mounting hole for an optional photo tripod adapter (#1185) is built into the SkyMaster's center hinge, hidden under the removable Celestron logo.\u003c\/p\u003e\n\u003cp\u003eThe body is armored in black rubber for a comfortable grip and added protection against unexpected bumps and thumps. Because it is O-ring sealed and nitrogen-purged to be waterproof and internally fogproof, there's no need to worry about putting the binocular down in dew-soaked grass or letting dew bead up on it during an evening's observing session. The large ribbed rubber focusing wheel is easy to adjust, even when wearing gloves. P\u0026gt;Eye relief is specified at a very long 18mm. Unlike many binoculars, whose actual eye relief typically measures less than that specified, the SkyMaster DX truly \u003cem\u003ehas \u003c\/em\u003ea full 18mm of usable eye relief. It's a refreshing change from the overly optimistic figures quoted by many manufacturers. Rubber-rimmed twist-up eyecups shield the unaided eye from stray light when up, and cushion eyeglass lenses when down.\u003c\/p\u003e\n\u003cp\u003eOne and a third turns of the large focus knob moves from a not-so-close 25' near focus out to the far reaches of the Universe. With a 25' close focus, this center-focusing Z-body SkyMaster DX is obviously not designed for close-in nature study. That said, its very bright images and good resolution will do a creditable job of revealing small details from what would normally be considered an excessively distant vantage point. It is a good choice for long distance terrestrial viewing under low light conditions. The 8 x 56mm is excellent for revealing underwing field markings of raptors in flight, for observing deer feeding in distant meadows early in the morning, or any other twilight birding or nature study activity where close focus is not required - but bright images are essential. Nesting eagles or ducks across a lake at dusk are prime candidates for this big binocular.\u003c\/p\u003e\n\u003cp\u003eAs a first serious astronomical observing tool, as a long distance nature study instrument, or as a highly useful companion to take into the field with your telescope at night, the Celestron 8 x 56mm SkyMaster DX is a very worthwhile balance of performance versus price. The SkyMaster DX comes with a wide and comfortable woven neck strap, a soft vinyl case, an eyepiece rainguard, and objective lens covers.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eArmored\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClose Focus\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e25'\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExit Pupil\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e7mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEye Relief\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e18mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eField of view\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eField of view 1000 yards\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e304'\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e7\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInterpupillary Distance\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e58-72mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRelative Brightness\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e49\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTwilight Factor\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e21.17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e38 oz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eLimited Lifetime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eSupplied Accessories: \u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNeck strap\u003c\/li\u003e\n\u003cli\u003eSoft case\u003c\/li\u003e\n\u003cli\u003eEyepiece rainguard\u003c\/li\u003e\n\u003cli\u003eObjective lens covers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":40221663854665,"sku":"C856SM","price":289.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/15914.jpg?v=1662967716"},{"product_id":"celestron-9x63mm-skymaster-dx","title":"Celestron 9X63mm SkyMaster DX Binoculars","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWhether you want to do wide field, low power astronomical observing; long distance, low light nature study; or you simply want a highly useful companion to take into the field with your telescope at night - the big Celestron 9 x 63mm SkyMaster DX will do it all. It provides a very worthwhile balance of very big performance versus very little price. The 9 x 63mm SkyMaster DX has a wide 5° field and very bright 7mm exit pupils ideal for serious low power\/wide field astronomical viewing. You can sweep the star clouds of Sagittarius or search out the 3° wide Great Galaxy M31 in Andromeda and the Pinwheel Galaxy M33 in Triangulum. The SkyMaster DX uses high light transmission BaK-4 prisms and multicoated optics for bright images of faint deep space objects like these, particularly from a truly dark sky observing site. While it offers exceptional low power astronomical viewing on its own, it also makes a good wide-field observing complement to the narrower field of a higher power telescope.\u003c\/p\u003e\n\u003cp\u003eThe optical performance is surprisingly good, particularly in view of its large aperture and very sensible price. The optics are fully multicoated on all air-to-glass surfaces for high light transmission. The field of view is reasonably flat. Astigmatism, distortion, and chromatic aberration at the edges of the field are nicely controlled. This makes for clean and expansive views of the Double Cluster in Perseus as well as globular clusters like M13 and M22. Open clusters like the Beehive and the Wild Duck are cleanly defined, with point-like stars out to the edges of the field.\u003c\/p\u003e\n\u003cp\u003eAt 44 ounces, the SkyMaster DX is a handful to hand hold. We recommend using it on a camera tripod for the sharpest images, as few people will have the wrist strength needed to hold it steady for extended hand-held use. A 1\/4\"-20 thread mounting hole for an optional photo tripod adapter (#1185) is built into the SkyMaster's center hinge, hidden under the removable Celestron logo.\u003c\/p\u003e\n\u003cp\u003eThe body is armored in black rubber for a comfortable grip and added protection against unexpected bumps and thumps. Because it is O-ring sealed and nitrogen-purged to be waterproof and internally fogproof, there's no need to worry about putting the binocular down in dew-soaked grass or letting dew bead up on it during an evening's observing session. The large ribbed rubber focusing wheel is easy to adjust, even when wearing gloves. P\u0026gt;Eye relief is specified at a long 17mm. Unlike many binoculars, whose actual eye relief typically measures less than that specified, the SkyMaster DX truly \u003cem\u003ehas \u003c\/em\u003ea full 17mm of usable eye relief for virtually unvignetted eyeglass use. It's a refreshing change from the overly optimistic figures quoted by many manufacturers. Rubber-rimmed twist-up eyecups shield the unaided eye from stray light when up, and cushion eyeglass lenses when down.\u003c\/p\u003e\n\u003cp\u003eOne and a third turns of the large focus knob moves from a not-very-close 35' near focus out to the far reaches of the Universe. With a 35' close focus, this center-focusing Z-body SkyMaster DX is obviously not designed for close-in nature study. That said, its very bright images and high resolution will do a good job of revealing small details from what would normally be considered an excessively distant vantage point. It is a good choice for long distance terrestrial viewing under low light conditions. The 9 x 63mm is excellent for revealing underwing field markings of raptors in flight, for observing deer feeding in distant meadows early in the morning, or any other twilight nature study activity where close focus is not required - but bright images are essential. Nesting eagles or ducks across a lake at dusk are prime candidates for this big binocular.\u003c\/p\u003e\n\u003cp\u003eAs a serious astronomical observing tool, as a long distance nature study instrument, or as a very useful companion to take into the field with your telescope at night, the big Celestron 9 x 63mm SkyMaster DX is a very worthwhile balance of performance versus price. The SkyMaster DX comes with a wide and comfortable woven neck strap, a soft vinyl case, an eyepiece rainguard, and objective lens covers.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eArmored\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClose Focus\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e35'\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExit Pupil\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e7mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEye Relief\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e17mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eField of view\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eField of view 1000 yards\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e262'\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e8.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInterpupillary Distance\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e58-72mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRelative Brightness\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e49\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTwilight Factor\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e23.81\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e44 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eLimited Lifetime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eSupplied Accessories: \u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNeck strap\u003c\/li\u003e\n\u003cli\u003eSoft case\u003c\/li\u003e\n\u003cli\u003eEyepiece rainguard\u003c\/li\u003e\n\u003cli\u003eObjective lens covers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":40221663887433,"sku":"C963SM","price":289.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/15915.jpg?v=1662967718"},{"product_id":"mysky-scope-control-cable-for-autostar-ii-equipped-scopes-only","title":"MySKY Scope Control Cable for AutoStar II-equipped scopes only","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis Product Has Been Discontinued And Is No Longer For Sale.  This Product Is Listed For Informational Purposes Only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis mySKY cable lets you connect your Meade mySKY electronic sky guide to a Meade AutoStar II-equipped LX200 computerized telescope to expand the scope's capabilities, without having to pay for extra cables for scopes you don't own . . .This cable lets you connect a Meade mySKY hand-held multimedia sky exploration guide to a Meade AutoStar II-equipped LX200 computerized telescope. It lets you point your mySKY at a celestial object, push a button on the mySKY, and have your telescope slew to the object you've selected on the mySKY screen.\u003c\/p\u003e\n\u003cp\u003eThis 10' coiled cable has 4-pin to 6-pin telephone-style connectors for use with an AutoStar II-equipped telescope (LX200, LX200R, etc.) It will not work with Meade #497 AutoStar scopes (ETX Maksutovs, LXD-55\/75 mounts and scopes, LX90 SCTs).\u003c\/p\u003e\n\u003cp\u003eThere's no more scrolling through menus to find the Messier number of that globular cluster or nebula you can see overhead so you can get your scope to move to it. After aligning your scope on the sky normally, aim your mySKY at an object in the sky, select the \"Point Scope\" option on the mySKY control panel, and your scope will go right to the object.\u003c\/p\u003e\n\u003cp\u003eThe cable also lets you add the mySKY GPS date, time, and location functions to Meade non-GPS computerized telescopes for a more accurate telescope set-up.\u003c\/p\u003e","brand":"Meade","offers":[{"title":"Default Title","offer_id":40221663920201,"sku":"CAB200","price":19.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/16027.jpg?v=1662967719"},{"product_id":"astro-tech-2-x-35mm-extension-tube","title":"Astro-Tech 2\" x 35mm Extension Tube","description":"\u003cp\u003eThis Astro-Tech 2\" x 35mm extension tube is used to make up for the loss of light path when a 2\" star diagonal is removed from many refractor focusers and replaced by a camera and camera adapter for imaging. It can also be used with Astro-Tech Ritchey-Chrétien reflectors to bring webcams and DSLRs to the correct focus . . .This Astro-Tech 35mm long x 2\" diameter extension tube can be used to make up for the loss of light path when a 2\" star diagonal is removed from many refractor telescope focusers and replaced by a camera and camera adapter for imaging. In some cases, it is also useful to replace the light path lost when a full-sized 2\" diagonal is replaced in the scope by a shorter light path 1.25\" diagonal.\u003c\/p\u003e\n\u003cp\u003eThis Astro-Tech extension tube can also be used with Astro-Tech Ritchey-Chrétien reflectors. With these Astro-Tech scopes, the scope's focuser is used by itself or (more typically) in combination with one or both of the thread-on extension rings supplied with the scope to place the camera at the telescope's focal plane.\u003c\/p\u003e\n\u003cp\u003eIn some cases, however, there may not be quite enough focuser extension for webcam use when using both thread-on extension rings with an Astro-Tech R-C, or the two extensions might be too long to bring a DSLR to focus while one extension might not be long enough. This 2\" compression ring extension tube can be slipped into the 2\" accessory holder of the Astro-Tech R-C's focuser to add the extra focuser length needed. Optional Astro-Tech 50mm and 80mm extension tubes are also available. A little experimentation will be called for to determine what combination of focuser and extension tube(s) will be needed for your particular combination(s) of visual and\/or photographic components.\u003c\/p\u003e\n\u003cp\u003eOne end of this Astro-Tech 2\" diameter x 35mm long extension tube fits into 2\" focuser drawtubes. This end is threaded to accept 48mm filters. A shallow safety groove is machined into the barrel of the extension tube. This groove engages the thumbscrew or compression ring of your focuser to prevent the extension tube and your camera from falling should the focuser thumbscrew loosen accidentally during use. The barrel extends 35mm into the focuser drawtube to provide a secure tilt-free installation when the focuser thumbscrew is firmly tightened.\u003c\/p\u003e\n\u003cp\u003eThe opposite end of the extension tube has a 2\" diameter accessory holder with a non-marring brass compression ring. A single thumbscrew tightens the compression ring on your 2\" accessories to hold them firmly in place. This accessory holder adds 35mm of extension to the light path when the extension tube is seated firmly into your focuser. The overall length of the extension tube is 70mm, 35mm extending into your focuser with 35mm of external light path extension. The extension tube is machined of aluminum, anodized black. The interior has anti-reflection threading.\u003c\/p\u003e\n\u003ch2\u003eTech Details:\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4 oz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Astro-Tech","offers":[{"title":"Default Title","offer_id":40221665361993,"sku":"AT35EXT","price":29.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/17010.jpg?v=1662967758"},{"product_id":"astro-tech-2-x-50mm-extension-tube","title":"Astro-Tech 2\" x 50mm Extension Tube","description":"This Astro-Tech 2\" x 50mm extension tube is used to make up for the loss of light path when a 2\" star diagonal is removed from many refractor focusers and replaced by a camera and camera adapter for imaging. It can also be used with Astro-Tech Ritchey-Chrétien reflectors to bring webcams and DSLRs to the correct focus . . .This Astro-Tech 50mm long x 2\" diameter extension tube can be used to make up for the loss of light path when a 2\" star diagonal is removed from many refractor telescope focusers and replaced by a camera and camera adapter for imaging.\n\u003cp\u003eThis Astro-Tech extension tube can also be used with Astro-Tech Ritchey-Chrétien reflectors. With these Astro-Tech scopes, the scope's focuser is used by itself or (more typically) in combination with one or both of the thread-on extension rings supplied with the scope to place the camera at the telescope's focal plane.\u003c\/p\u003e\n\u003cp\u003eIn some cases, however, there may not be quite enough focuser extension for webcam use when using both thread-on extension rings with an Astro-Tech R-C, or the two extensions might be too long to bring a DSLR to focus while one extension might not be long enough. This 2\" compression ring extension tube can be slipped into the 2\" accessory holder of the Astro-Tech R-C's focuser to add 50mm of extra focuser length. Optional Astro-Tech 35mm and 80mm extension tubes are also available. A little experimentation will be called for to determine what combination of focuser and extension tube(s) will be needed for your particular combination(s) of visual and\/or photographic components.\u003c\/p\u003e\n\u003cp\u003eOne end of this Astro-Tech 2\" diameter x 50mm long extension tube fits into 2\" focuser drawtubes. This end is threaded to accept 48mm filters. A shallow safety groove is machined into the barrel of the extension tube. This groove engages the thumbscrew or compression ring of your focuser to prevent the extension tube and your camera from falling should the focuser thumbscrew loosen accidentally during use. The barrel extends 35mm into the focuser drawtube to provide a secure tilt-free installation when the focuser thumbscrew is firmly tightened.\u003c\/p\u003e\n\u003cp\u003eThe opposite end of the extension tube has a 2\" diameter accessory holder with a non-marring brass compression ring. A single thumbscrew tightens the compression ring on your 2\" accessories to hold them firmly in place. This accessory holder adds 50mm of extension to the light path when the extension tube is seated firmly into your focuser. The overall length of the extension tube is 85mm, 35mm extending into your focuser with 50mm of external light path extension. The extension tube is machined of aluminum, anodized black. The interior has anti-reflection threading.\u003c\/p\u003e\n\u003ch2\u003eTech Details:\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e5.5 oz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Astro-Tech","offers":[{"title":"Default Title","offer_id":40221665427529,"sku":"AT50EXT","price":29.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/17011.jpg?v=1662967759"},{"product_id":"astro-tech-7-short-universal-dovetail-plate-for-vixen-style-mounts-black","title":"Astro-Tech 7\" Short Universal Dovetail Plate for Vixen-Style Mounts, Black","description":"\u003cp\u003eThis black-anodized 7\" Astro-Tech short universal dovetail plate fits the dovetail slot of the Vixen-style saddle used on current Vixen and Vixen-style altazimuth and German equatorial mounts. Such mounts include the Astro-Tech Voyager altazimuth; Celestron CG-5 and Advanced Series equatorial mounts; Meade LXD-75 equatorial mount; and Vixen Polaris, Great Polaris, and Sphinx equatorials, or Porta altazimuth mounts.\u003c\/p\u003e\n\u003cp\u003eThe Astro-Tech universal dovetail is designed primarily to hold the mounting rings of short focal length Astro-Tech, TeleVue, Parks, Takahashi, and Meade refractors, plus those of the smaller Astro-Tech, Questar, Meade, and Celestron catadioptric optical tubes.\u003c\/p\u003e\n\u003cp\u003eThe dovetail has two unthreaded 6.9mm diameter mounting holes at the ends of the dovetail and a 0.25\" wide x 5\" long slot on the plate's centerline for attaching rings and other accessories using 1\/4\"-20 or metric bolts. The configuration of the slot and mounting holes is shown in the engineering drawing in the feature image below. This combination of the slot and the mounting holes allows you to install virtually any configuration of mounting rings.\u003c\/p\u003e\n\u003cp\u003eThe underside of the dovetail is routed out to a depth of 10mm so that the mounting holes and slots are all effectively countersunk into the underside of the dovetail. This assures that the heads of the bolts holding the mounting rings will not protrude and keep the dovetail plate from sliding back and forth in the mount saddle for balancing.\u003c\/p\u003e\n\u003cp\u003eThere is also a 1\/4\"-20 thread hole at each end of the plate. This lets you install 1\/4\"-20 bolts in the holes to act as safety stops. These will keep the dovetail from sliding out of the mount saddle unexpectedly should the mount's locking knob loosen accidentally.\u003c\/p\u003e\n\u003cp\u003eThe 5\/8\" thick dovetail is precision-machined of aluminum stock. It measures 15\" long x 42mm wide at its widest point (36mm wide across the top ring mounting surface) and is hard-anodized black for durability. It weighs 6.4 ounces.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e6.4 oz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Astro-Tech","offers":[{"title":"Default Title","offer_id":40221668704329,"sku":"ATVUPSB","price":30.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/17840.jpg?v=1662967859"},{"product_id":"sbig-fw5-8300-color-filter-wheel-only-for-sbig-st-8300-ccd-cameras-without-filters","title":"SBIG FW5-8300 Color filter wheel only for SBIG ST-8300 CCD cameras, without filters","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eTHIS PRODUCT HAS BEEN DISCONTINUED AND IS NO LONGER FOR SALE.  THIS PAGE IS HERE FOR INFORMATIONAL PURPOSES ONLY.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis SBIG FW5-8300 filter wheel (without filters) allows tri-color CCD imaging using your own 36mm LRGB and narrowband filters with the SBIG ST-8300 CCD cameras . . .Due to the large size of the 3326 x 2504 pixel CCD detector used in the SBIG ST-8300 cameras, the typical 27mm clear aperture 1.25\" filters in cells that are used with other cameras are just too small to fully cover the ST-8300 sensor without some vignetting. While this may be acceptable at f\/7 or longer focal ratios, at shorter focal ratios the vignetting becomes obtrusive. For this reason, this new SBIG #CFW83NF 5-position filter wheel mounts on the front of the ST-8300 and holds optional larger diameter 36mm unmounted filters for use with fast focal ratio reflectors and refractors.\u003c\/p\u003e\n\u003cp\u003eFull sets of 36mm LRGB and narrowband filters from Astrodon and Baader Planetarium are now available and a new set from Custom Scientific will be available in the near future. In addition, Astronomik intends to make filters in the 36mm size, so there is a wide variety of filters available. This #CFW83NF filter wheel is also available with a complete 4-filter set of 36mm Baader LRGB filters (#CFW83) at a savings of $95 over the cost of buying this empty filter wheel and the Baader filters separately.\u003c\/p\u003e\n\u003cp\u003eThe #CFW83NF filter wheel is a single carousel design with a new filter retaining system that makes changing filters easier than using individual retaining screws for each filter. The entire carousel is also interchangeable for swapping between a standard LRGB set and a narrowband filter set all at the same time without having to mount and dismount individual filters.\u003c\/p\u003e\n\u003cp\u003eThis filter wheel has a small footprint, only 4 x 5 inches. Its thin design adds only 20mm of backfocus, so that the total backfocus for an ST-8300 with this filter wheel is only 38mm. The #CFW83NF plugs directly into the I2C port on the ST-8300 camera and does not require separate power or control cables. Fully automatic functioning of the filter wheel is controlled by the same software that controls the camera. An optional Nikon lens adapter (#CFW83NIK) is available that connects to the filter wheel to let you use Nikon 35mm and DSLR lenses for extremely wide field imaging.\u003c\/p\u003e\n\u003cp\u003eIn addition, for those who may already have 2\" filters, SBIG has designed an optional adapter plate to mate the ST-8300 camera to the SBIG #FW8-STL 8-position 2\" filter wheel. The FW8-STL holds both 2\" filters in threaded cells and 50.8mm round unmounted filters.\u003c\/p\u003e\n\u003cp\u003eFinally, for those users with slower focal ratio optical systems, standard 1.25\" filters may be acceptable. In this case both the CFW9 and CFW10 filter wheels will fit the ST-8300 camera and these too will operate automatically by plugging into the I2C port on the ST-8300 camera.\u003c\/p\u003e\n\u003cp\u003eThe images show the #CFW83NF mounted on an ST-8300.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003cbr\u003e\n\u003c\/h2\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 lb. 6 oz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"SBIG","offers":[{"title":"Default Title","offer_id":40221669359689,"sku":"CFW83NF","price":695.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/18425.jpg?v=1662967880"},{"product_id":"celestron-80lcm-80mm-f-11-achromatic-go-to-altazimuth-refractor","title":"Celestron 80 LCM 80mm f\/11 Achromatic Go-To Altazimuth Refractor","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Celestron 80LCM is a substantial, yet very affordable and very portable, 80mm refractor on a battery-operated computerized go-to mount that will get you and the whole family up close and personal with the sky by night and nature by day . . .\u003c\/p\u003e\n\u003cdiv class=\"heading\"\u003e\u003cstrong\u003eThis Celestron 80LCM telescope has:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"heading\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"heading\"\u003e• 80mm f\/11.25 fully-coated achromatic refractor optics \u003cbr\u003e• computerized go-to altazimuth mount \u003cbr\u003e• pre-assembled aluminum tripod\u003cbr\u003e• StarPointer red dot finder \u003cbr\u003e• 25mm (36x) and 9mm (100x) 1.25\" eyepieces \u003cbr\u003e• 1.25\" 90° star diagonal \u003cbr\u003e• 2-year warranty\u003c\/div\u003e\n\u003cdiv class=\"heading\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eYou don't have to know anything about right ascension and declination or how to find the north celestial pole or how to read a star chart to find your way around the sky with the Celestron 80LCM 80mm go-to refractor. Its easy SkyAlign alignment technology and StarPointer red dot LED finder make lining up on the sky a breeze. Once aligned, the scope's NexStar-technology computer hand control will find more than 4,000 celestial objects for you and will track them unerringly while you observe at your leisure. With its pre-assembled adjustable height aluminum tripod and easy no-tool assembly, the Celestron 80LCM can be up and ready to take you on a tour of the Universe in a matter of minutes.\u003c\/p\u003e\n\u003cp\u003eThe Celestron 80LCM is a good choice for a beginning astronomer who wants to do some more-than-casual looking at the heavens, but at a surprisingly inexpensive price. This Celestron 80LCM has 80mm achromatic refractor optics with 77% more light gathering capacity than a 60mm scope. That means visibly brighter deep space images and the ability to see many more faint objects than a 60mm scope could ever hope to show. It has a third higher resolution than a 60mm scope as well, to let you see more sharper and detailed views of the Moon, planets, binary stars, and star clusters.\u003c\/p\u003e\n\u003cp\u003eThe Celestron 80LCM has all the features and optical performance needed to keep a casual backyard astronomer happily observing for years to come. And it can be used for terrestrial observing, too - birdwatching, scanning the scenery from the home with a view, and more.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis Telescope's Optical System . . .\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAchromatic refractor optical system:\u003c\/strong\u003e 80mm aperture (900mm focal length f\/11.25) aluminum tube. The tube is connected to the mount by a no-tool quick release dovetail for fast assembly. Fully coated optics for high light transmission and good contrast. A good-sized lens shade is provided to shield the lens from ambient light for improved contrast and retard the formation of dew for maximum uninterrupted observing time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFinder:\u003c\/strong\u003e StarPointer non-magnifying variable brightness illuminated red dot finder on a quick-release dovetail mounting bracket. The StarPointer is a quick and easy way to point your telescope exactly to the desired object in the sky. There's no need to worry about the inverted images you see through traditional finders. Just align the red dot seen in the StarPointer with the desired star in the sky and you're done.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFocuser:\u003c\/strong\u003e 1.25\" rack and pinion.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStar diagonal:\u003c\/strong\u003e 1.25\" 90° erect image prism that shows you celestial and terrestrial sights oriented the same way you see them with your bare eye. There's no confusing image reversal or inversion as you get with many other astronomical telescopes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTwo 1.25\" eyepieces:\u003c\/strong\u003e The first is a 25mm providing a magnification of 36x. The eyepiece field of view is 1.1° across, more than twice as wide as the diameter of the full Moon for expansive views of globular star clusters and terrestrial observing. The second is a 9mm (100x) with a 0.44° field for more close-up views of the Moon, planets, and globular star clusters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis Telescope's Mount . . .\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFork mount\/drive system:\u003c\/strong\u003e Single fork arm altazimuth design with pre-installed enclosed dual DC servo motor drives. A compartment in the drive base accepts eight user-supplied AA batteries for powering the telescope. An optional AC adapter and rechargeable battery pack are available to conserve battery life. For more details, click on the \"mount\" icon above.Usable day or night, this LCM scope can be used to observe wildlife and sights on the ground during the day, as well as the Moon, planets, star clusters and more in the sky at night. Light enough for a youngster to take out on their own, this is a scope that will get more family use than you might expect.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLCM computer control:\u003c\/strong\u003e The supplied NexStar-technology computer hand control has an illuminated numeric keypad and a two-line 16-character LCD display. It has a database of 4,033 stars and objects it can find and track for you, including the complete Messier and Caldwell catalogs of famous deep space objects; a selection of the brightest and best deep space objects from the Revised New General Catalog (NGC); selected SAO stars, including the best variable stars and multiple star systems; the planets; the Moon; the Sun; and more.\u003c\/p\u003e\n\u003cp\u003eWhen you are ready to observe, simply input the date, time, and your location into the LCM computer hand control and use the StarPointer red dot finder to point the telescope at any three bright stars, or to two stars and a bright planet or the Moon. The LCM computer system will automatically align itself on the sky. Then, a few keystrokes on the LCM hand control and the computer automatically will slew your scope to any of the 4,033 objects in its memory you choose and track it so you can observe at your leisure. You can find hundreds of fascinating deep space objects your first night out, even if you have never used a telescope before. No matter what level of experience you start from, your LCM scope will unfold all the wonders of the Universe for you, your family, and your friends. For more details, click on the \"computer\" link in the support tab above.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdjustable height tripod:\u003c\/strong\u003e The preassembled tripod has aluminum legs to damp vibrations quickly. The center leg brace holds a convenient no-tool quick-release accessory tray to keep your eyepieces and accessories up and out of the dew-soaked grass. The tripod has maximum height of only 44\", however, so be aware that most of your observing will have to be done from a seated position.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTwo-year warranty:\u003c\/strong\u003e All Celestron telescopes have a two-year warranty.\u003c\/p\u003e\n\u003ch2\u003eTech Details: \u003cbr\u003e\n\u003c\/h2\u003e\n\u003ctable class=\"table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAperture\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e3.1\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Length\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e900mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Ratio\u003c\/th\u003e\n\u003ctd class=\"data\"\u003ef\/11.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHighest Useful Magnification\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e180x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMotorized Controls\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eComputer Go-To\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e14 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResolution\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1.45 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupplied Eyepiece\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e25mm and 9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTelescope Type\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eRefractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eView Finder\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eStarPointer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVisual Limiting Magnitude\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eSupplied Accessories: \u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e80mm fully coated refractor optics\u003c\/li\u003e\n\u003cli\u003eGo-to computerized altazimuth mount with dual-axis DC servo motor drives\u003c\/li\u003e\n\u003cli\u003ePre-assembled adjustable height aluminum tripod\u003c\/li\u003e\n\u003cli\u003eAccessory tray\u003c\/li\u003e\n\u003cli\u003eHand control with 4,000+ star and object database for go-to operation\u003c\/li\u003e\n\u003cli\u003eInternal AA battery compartment (batteries not supplied)\u003c\/li\u003e\n\u003cli\u003eBattery-powered variable brightness StarPointer red LED non-magnifying finder (battery supplied)\u003c\/li\u003e\n\u003cli\u003e1.25\" rack and pinion focuser\u003c\/li\u003e\n\u003cli\u003e1.25\" prism-type star diagonal\u003c\/li\u003e\n\u003cli\u003e1.25\" 25mm eyepiece (36x)\u003c\/li\u003e\n\u003cli\u003e1.25\" 9mm eyepiece (100x)\u003c\/li\u003e\n\u003cli\u003eTheSky X - First Light Edition CD-ROM star-charting software for PC or Mac\u003c\/li\u003e\n\u003cli\u003eDust covers.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":40221669720137,"sku":"LCM80","price":419.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/18621.jpg?v=1662967891"},{"product_id":"celestron-nexguide-ccd-autoguider","title":"Celestron NexGuide CCD Autoguider","description":"\u003cp\u003e\u003cstrong\u003eTHIS PRODUCT IS DISCONTINUED. THIS PAGE IS HERE FOR INFORMATIONAL PURPOSES ONLY.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003eThe Celestron NexGuide stand-alone CCD autoguider guides your long exposure deep space photos electronically and automatically, without needing the separate computer many similarly-priced competitive guiders require. The Celestron NexGuide is a \u003cstrong\u003e\u003cem\u003eSky \u0026amp; Telescope Hot Product for 2011\u003c\/em\u003e\u003c\/strong\u003e . . .\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTHIS PRODUCT IS DISCONTINUED.  THIS PAGE IS HERE FOR INFORMATIONAL PURPOSES ONLY.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Celestron NexGuide autoguider - a \u003cstrong\u003e\u003cem\u003eSky \u0026amp; Telescope Hot Product for 2011\u003c\/em\u003e\u003c\/strong\u003e - provides a user-friendly and accurate stand-alone autoguiding system for long-exposure astrophotography that does the guiding for you electronically and automatically. In many cases, you don't even have to be present at your scope while taking a long exposure deep space photo.\u003c\/p\u003e\n\u003cp\u003eUnlike other similarly-priced autoguiders, no computer is needed to operate the NexGuide. The stand-alone Celestron NexGuide is compatible with virtually any mount that is equipped with a separate photoguide telescope and an autoguider port. It comes complete with everything you need to work right out of the box!\u003c\/p\u003e\n\u003cp\u003eThe Celestron NexGuide uses a Sony ICX404AL CCD sensor to detect and lock on a guide star to guide your mount while your camera takes deep space images. The Sony sensor has 9.6 x 7.5 micron pixels in a 510 by 492 array, with exposure times that double each time in 13 steps from 1 millisecond to 4096 milliseconds for highly accurate guiding.\u003c\/p\u003e\n\u003cp\u003eThe battery-powered sensor is mounted in a sleek housing that measures just 4.25\" x 3.25\" x 1.25\" in diameter by 2.35\" long. It weighs just 7 oz. The separate battery pack uses four D-cells (not supplied) that will provide many, many hours of guiding in the field. You can also use your own DC power supply capable of providing 6V to 14V DC (lower voltage is recommended) at 250mA and up. Your power supply will need a 2.1mm power plug, center positive, to connect to the NexGuide.\u003c\/p\u003e\n\u003cp\u003eThe sensor housing also holds a 1\" x 1.5\" night vision LCD display. The left half of the screen displays text information such as the menu, data, and status of the autoguider. The right half of the screen displays the image captured by the guiding sensor. A separate nine-button hand control measuring 3.75\" x 2.5\" x 0.6\" lets you navigate the on-screen menus and control all the functions of the NexGuide. The hand control weighs only 3 ounces, including cable. The buttons are illuminated.\u003c\/p\u003e\n\u003cp\u003eThe NexGuide has a 1.25\" nosepiece for connection to your photoguide scope focuser. The nosepiece comes with an extension for those scopes with more back focus and can be removed to reveal a female T-thread interface. A parfocalizing ring is provided to use with any convenient eyepiece to aid in focusing your photoguide scope.\u003c\/p\u003e\n\u003cp\u003eThe Celestron NexGuide's ease of use will appeal to beginning and experienced astrophotographers alike. The built-in software requires no previous knowledge of autoguiding. It offers automatic calibration of each axis in addition to automatically setting the guide rate parameters. The exposure range is from 1 millisecond to 4 seconds, assuring the ability to use even a faint star for guiding purposes. Typically, the NexGuide can capture and guide on a star as faint as magnitude 8 using an 80mm refractor guidescope, 2048ms exposure times, and good seeing conditions.\u003c\/p\u003e\n\u003cp\u003eThe NexGuide is complete with guiding sensor and LCD screen unit; 1.25\" barrel to T-thread adapter; 1.25\" barrel extension; 1.25\" parfocalizing ring; hand control and cable; 6' RJ-12 guiding cable to connect the NexGuide to your mount via an ST4 compatible output jack on the NexGuide body; battery case and cable; instructions; and a separate serial cable and RJ-45 programming plug for downloading possible firmware updates from the Celestron website.\u003c\/p\u003e\n\u003cp\u003eWith the Celestron NexGuide stand-alone autoguider, precision automatic autoguiding for long-exposure deep-sky photography is now easier and more economical than ever before.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":40221670703177,"sku":"NEXGUIDE","price":299.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/18792.jpg?v=1662967921"},{"product_id":"cgem-dx-1100-hd-11-sct-with-edgehd-high-definition-ptics","title":"CGEM DX 1100 HD 11\" SCT with EdgeHD high definition ptics","description":"\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003eThis product has been discontinued and is here for informational purposes only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003eThe Celestron CGEM DX 1100HD - \u003cem\u003e\u003cspan style=\"color: #990000;\"\u003ea double Sky \u0026amp; Telescope Hot Product\u003c\/span\u003e\u003c\/em\u003e - combines big 11\" \u003cem\u003eEdgeHD\u003c\/em\u003e high definition optics with a Celestron CGEM DX go-to  mount to give you a superlative and surprisingly portable true astrographic-quality telescope.\u003c\/p\u003e\u003cp\u003e\u003cspan onclick=\"javascript:Show360('http:\/\/www.celestron.com\/ajax\/ajax_action.php?Content=articleContent_sports_outdoors_229_360%20Degree%20Views');\" style=\"cursor: pointer;\"\u003e\u003cimg alt=\"\" src=\"\/images\/360s.png\" style=\"float: right;\"\u003e\u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003eThis product is discontinued.  This is here for informational purposes only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis Celestron CGEM DX 1100HD telescope has: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e • 11\" EdgeHD high definition aplanatic Schmidt-Cassegrain optics \u003cbr\u003e• newly-upgraded 50 pound payload capacity CGEM DX German equatorial mount \u003cbr\u003e• StarBright XLT optical multicoatings for the highest possible light transmission\u003cbr\u003e• 9 x 50mm finderscope \u003cbr\u003e• 23mm 2\" 82° field Axiom ultra-premium eyepiece (122x) \u003cbr\u003e• NexStar go-to computer hand control with 40,000+ object database \u003cbr\u003e• NexRemote software to control the telescope via computer \u003cbr\u003e• 2-year warranty \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e   The Celestron CGEM DX 1100HD telescope puts unique new large aperture 11\" aplanatic (free from coma and corrected for spherical aberration) \u003cem\u003eEdgeHD \u003c\/em\u003ehigh definition Schmidt optics on a newly-upgraded high-precision Celestron CGEM DX go-to German equatorial mount. The advanced EdgeHD optical design - a \u003cem\u003e\u003cspan style=\"font-family: verdana; font-size: 13px; color: #990000;\"\u003eSky \u0026amp; Telescope Hot Product for 2010\u003c\/span\u003e \u003c\/em\u003e- has a dual-element field flattener lens made from premium Schott optical glass mounted in its central baffle tube. The field flattener reduces off-axis coma and produces aberration-free images across a wide 42mm image circle (as large as the diagonal of a 35mm negative or large format CCD chip and ideal for astrophotography). \u003cbr\u003eIn addition to reduced off-axis coma, the \u003cem\u003eEdgeHD \u003c\/em\u003eoptical system delivers an astrograph-quality focal plane more than three times flatter than a standard Schmidt-Cassegrain telescope and dramatically flatter than competing coma-free designs. Stars are smaller and more concentrated, creating brighter images and allowing you to see down to a fainter magnitude than other equally-sized telescopes. You see visibly sharp and point-like stars to the very edges of some of the largest CCD and DSLR chips available today. \u003cbr\u003eCelestron's renowned Starbright XLT multicoatings on every optical surface give you maximum light throughput across the widest possible visual and photographic spectrum. The big aperture CGEM DX 1100HD's immense light grasp, almost 1600 times that of even the sharpest dark-adapted eye, reveals star clusters, nebulas, planets, and galaxies in amazing visual and photographic detail. The Fastar-compatible optical tube allows imaging down to an incredibly-fast f\/2 focal ratio using optional accessories. \u003cbr\u003eThe smooth and precise Celestron CGEM DX go-to mount makes finding over 40,000 of those stars and objects easy and automatic. You spend more time looking \u003cem\u003eat \u003c\/em\u003ecelestial objects, and less time looking \u003cem\u003efor \u003c\/em\u003ethem. The newly-upgraded CGEM DX mount combines portability and premium-level performance with a payload capacity of 50 pounds. This makes for very steady imaging and visual observing with the 28 pound 11\" Celestron EdgeHD optical tube. \u003cbr\u003eWith a heaviest single component of only 45 pounds, the CGEM DX 1100HD makes large-aperture astrographic-quality imaging and visual astronomy not only affordable, but highly portable. Its light weight individual components and easily assembled mount make it easy to set up and enjoy - either in your back yard or at a distant dark sky site. Its superb flat-field reduced-coma optical quality and reasonable price for a really big full-featured computerized go-to mount make this \u003cem\u003e\u003cspan style=\"font-family: verdana; font-size: 13px; color: #990000;\"\u003eSky \u0026amp; Telescope Hot Product for 2010\u003c\/span\u003e \u003c\/em\u003e winner Celestron CGEM DX 1100HD a telescope that will provide years of affordable use and enjoyment for both the serious observer and the dedicated imager alike.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis Telescope's Optical System . . . \u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEdgeHD Schmidt-Cassegrain optical tube: \u003c\/strong\u003e11\" aperture (2800mm focal length f\/10). Built-in dual-element field flattener in the central baffle tube. Guaranteed diffraction-limited optical performance, free from coma and corrected for spherical aberrations (aplanatic design). The optical design is a \u003cem\u003e\u003cspan style=\"font-family: verdana; font-size: 13px; color: #990000;\"\u003eSky \u0026amp; Telescope Hot Product for 2010\u003c\/span\u003e. \u003c\/em\u003eThe 24\" long aluminum optical tube has a large handle on the rear cell and weighs only 28 pounds, making it easy to transport and assemble the scope in the field. \u003cspan style=\"font-family: verdana; font-size: 13px; color: #990000;\"\u003eFor more details, click on the \"EdgeHD optics\" icon above.\u003c\/span\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStarbright XLT fully multicoated optics: \u003c\/strong\u003e This high transmission\/high reflectivity optical coatings package gives you visibly higher light transmission for brighter deep space images and shorter exposure times during CCD and DSLR photography. It also increases the contrast on subtle lunar, planetary, and nebula details when compared with a scope with ordinary coatings or multicoatings. \u003cspan style=\"font-family: verdana; font-size: 13px; color: #990000;\"\u003eFor more details, click on the \"Starbright XLT\" icon above.\u003c\/span\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube vents: \u003c\/strong\u003eTwo cooling vents located on the rear cell allow warm air to be released from behind the primary mirror when the scope is taken out for a night's observing or imaging. This shortens the amount of time needed for the optics to cool down to ambient air temperature for peak optical performance. Each vent has an integrated 60 micron micro-mesh filter guaranteed to let warm air out without letting dust in.\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastar compatible: \u003c\/strong\u003eFor the ultimate in wide-field catadioptric imaging, the EdgeHD optical tube is Fastar compatible to allow CCD imaging at a blazingly-fast f\/2 focal ratio, although without the benefits of the dual-element field flattener built into the scope's baffle tube. An optional Fastar lens assembly lens replaces the telescope's removable secondary mirror (an exchange that takes only a few minutes). Your CCD camera is attached to the Fastar lens. This puts your camera at the f\/2 position in the center of the Schmidt corrector lens at the front of the scope, rather than in its normal f\/10 position at the Cassegrain focus at the rear of the scope. \u003cbr\u003e Using the Fastar system and a sub-$1300 Orion Star Shoot Deep Space Imager Pro CCD camera, the 11\" CGEM DX 1100HD will record a wide 141 x 94 arc minute field - a long axis almost five times the diameter of the full moon, an immense field for a scope of this size. To assure repeatability when you switch between Fastar and conventional imaging, the scope's optical tube is opto-mechanically aligned on a laser bench during manufacture so that all components are axially symmetric in any configuration.\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocusing: \u003c\/strong\u003eFocusing is accomplished by turning a knob at the rear of the scope body that moves the primary mirror fore and aft along a central baffle tube to adjust the focus. The Celestron focusing mechanism is supported by two pre-loaded ball bearings, minimizing the \"mirror flop\" typical of bushing focus mechanisms that causes image shift during critical focusing.\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinderscope: \u003c\/strong\u003e9 x 50mm straight-through achromatic design, with a substantial 5.8° field of view, in a quick-release bracket.\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStar diagonal: \u003c\/strong\u003e2\" mirror type with 1.25\" adapter.\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyepiece: \u003c\/strong\u003e23mm 2\" 82° field Axiom ultra-premium eyepiece (122x), a much higher quality eyepiece than those supplied with competitive scopes. The eyepiece field of view is 0.67 degrees, over one and a third times larger than the full Moon.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e\u003cstrong\u003eThis Telescope's Mount . . . \u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNewly upgraded 50 lb. payload capacity heavy duty CGEM DX computerized German equatorial mount: \u003c\/strong\u003eThe CGEM DX mount includes dual-axis slewing\/tracking motors on each axis, with new drive electronics for go-to computer control. There are nine motor drive speeds: 0.5x and 1x sidereal for guiding; 4x, 8x, 16x, and 64x for centering; and 0.5°, 2°, and a fast 5° per second for slewing. Preset tracking rates include sidereal, solar, and lunar for precise tracking of celestial objects inside the solar system as well as out in deep space.\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePowering the CGEM DX 1100HD : \u003c\/strong\u003eThe CGEM DX mount comes with a car battery cord to operate from the cigarette lighter plug of your car or from a rechargeable 12VDC battery pack. The 17 amp hour capacity Celestron Power Tank #4517V is recommended and will operate the scope all night long without danger of running out of power. A 5 amp capacity AC adapter (#2338PRO) is also available for continuous operation from a household AC outlet, in an observatory dome, for example.\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolar alignment: \u003c\/strong\u003eTo make a casual polar alignment for visual use quick and easy, there's a latitude scale with large ergonomically-friendly altitude and azimuth adjustment knobs. No polar alignment finderscope is available to aid in the precise polar alignment required for long exposure astrophotography, nor is any needed. A unique Celestron \u003cem\u003eAll-Star Polar Alignment \u003c\/em\u003eprogram built into the NexStar hand control helps you do a very precise computerized polar alignment in mere minutes, using any bright star, even when Polaris is hidden by trees or buildings. The program works in both northern and southern hemispheres.\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable height tripod: \u003c\/strong\u003eThe heavy and stable 45 pound tripod (the same one used on Celestron's top-of-the-line CGE PRO mount) has 2.75\" diameter stainless steel legs with a metal center leg brace for rigidity, for excellent vibration damping characteristics. The center leg brace is drilled to form a convenient accessory tray that holds 1.25\" and 2\" eyepiece to keep them up out of the dew-soaked grass.\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting the scope: \u003c\/strong\u003eA Losmandy-style \"D-plate\" dovetail slot on the top of the mount holds the long dovetail slide bar mounted under the optical tube. This allows you to slide the optical tube fore and aft in the dovetail slot to quickly and precisely balance the optical tube in declination when you add or subtract accessories, eliminating the need for an extra counterweight to balance a camera or other accessories. Setup and takedown times are exceptionally fast, as a single large hand-tighten knob holds the optical tube in place. A second lock knob prevents the tube from sliding off the mount should the hand-tighten knob loosen. The oversized dovetail mounting platform assures secure vibration-free tube attachment.\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalancing the scope: \u003c\/strong\u003eThe single sliding 22 pound counterweight is locked in place on the new larger diameter counterweight shaft with a single large hand-tighten knob. This makes it easy to rebalance the scope in right ascension if you add heavy photographic accessories.\n\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003eHere's a link for more details for the \u003ca href=\"\/celestron-cgem-dx-computerized-equatorial-mount-50-lb_p19039.aspx\"\u003eCGEM DX mount\u003c\/a\u003e. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNexStar computer hand control: \u003c\/strong\u003eThe supplied NexStar computer hand control has a built-in database of more than 40,000 stars and objects that it can find and track for you. These include the complete RNGC, Messier, Caldwell, IC, and Abell catalogs; selected SAO stars; the planets, the Moon, and others. The custom database lists of all the most famous deep-sky objects by name and catalog number; the most beautiful double, triple and quadruple stars; variable stars; non-planetary solar systems objects; and asterisms.\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe NexStar display: \u003c\/strong\u003eAll of the database and scope operation information is displayed on a double line, 16-character, liquid crystal display on the hand control. There are 19 fiber optic backlit LED buttons to make it easy for you to control the computer without affecting your dark-adapted vision. The NexStar hand control provides a constant and easily-visible illuminated right ascension and declination readout of the scopes position on the sky. This provides much greater accuracy than conventional (and hard to see at night) manual setting circles for star-hopping or locating objects by their celestial coordinates alone, should you want to observe the old-fashioned way without using the computer to find objects for you.\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSome NexStar features: \u003c\/strong\u003eThe software built into the NexStar hand control includes many, many features and programs discussed at greater length by clicking on the \"NexStar CGEM\" icon above. An RS-232 communication port on the hand control allows you to operate the telescope via a personal computer using the supplied RS-232 cable and NexRemote software CD-ROM. The hand control and motor control software is flash-upgradeable to allow you to download the latest product updates over the Internet to keep your CGEM mount always at the cutting edge of technology. An autoguider port is located on the electronic pier for guided, but unattended, long exposure astrophotography.\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAligning on the sky: \u003c\/strong\u003e Five different alignment methods are built into the NexStar computer - 2-star align, quick align, 1-star align, last alignment, and solar align - allowing you to choose a level of computer accuracy in automatically finding objects with which you are comfortable. Alignment is easily accomplished in only a few short minutes. You can be observing in less than 15 minutes after you first take the scope outdoors. There's even a new and unique \"All-Star\" software-assisted alignment of the mount's polar axis using a single bright star that will have you ready for imaging before it's even dark enough to see the North Star. \u003cspan style=\"font-family: verdana; font-size: 13px; color: #990000;\"\u003eFor more details, click on the \"NexStar CGEM computer\" icon above.\u003c\/span\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-year warranty: \u003c\/strong\u003eAll Celestron go-to telescopes have a two-year warranty, double that of competitive go-to scopes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e\u003ciframe frameborder=\"0\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/77dLKd5g2_M\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":40221671391305,"sku":"CGEM11HDX","price":4399.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/19045.jpg?v=1662967935"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/collections\/AT65EDQ_color_bg_dropped_out.jpg?v=1721750834","url":"https:\/\/astronomics.com\/collections\/discontinued-and-legacy-products.oembed?page=8","provider":"Astronomics","version":"1.0","type":"link"}