{"title":"Eyepiece Adapters","description":"","products":[{"product_id":"3-clamp-ring-extension-tube","title":"TeleVue 3.5\" Clamp Ring Extension Tube","description":"\u003cp\u003eWhile described as a 3\" extension tube in TeleVue's literature, the actual length of the tube is 3.5\".\u003c\/p\u003e\n\u003cp\u003eOne end of this 2\" diameter x 3.5\" long extension tube fits into 2\" focuser drawtubes. The opposite end is a 2\" diameter eyepiece holder that uses a non-marring brass clamp ring to hold 2\" eyepieces and accessories in place. The captive thumbscrew that tightens the clamp ring can't be lost in the field. This extension tube makes up for the loss of light path photographically when a 2\" star diagonal is removed from many scopes and replaced by a camera and camera adapter. TeleVue NP-101, TV-102, and Renaissance-102 scopes require both a 3\" \u003cem\u003eand \u003c\/em\u003ea 2\" extension tube in front of the camera adapter to reach proper photographic focus, so some experimentation may be called for to see if this tube alone is long enough for use with your particular telescope focuser.\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\"\u003e8 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":40221638230089,"sku":"1343C","price":78.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/files\/X3C_0009_ExtTube_3.5in_V2copy.jpg?v=1723668089"},{"product_id":"low-profile-adapter-to-use-1-25-eyepieces-in-2-focusers","title":"TeleVue Low Profile Adapter to Use 1.25\" Eyepieces in 2\" Focusers","description":"\u003cp\u003eThis low profile step-down adapter allows the use of 1.25\" eyepieces in 2\" focuser drawtubes and 2\" star diagonals. It is designed to provide a shorter light path than the standard TeleVue adapter #2715C. This allows eyepieces to swing through the drive base of many catadioptric scopes when using the TeleVue #7782PC 2\" SCT diagonal and #7785SC SCT adapter for extra clearance. The 2\" barrel of the adapter has an undercut groove that the star diagonal\/focuser thumbscrew sits in when tightened down. The extra depth of this groove reduces the chance of the adapter falling out of the focuser should the thumbscrew loosen. To keep your eyepieces looking new, 1.25\" eyepieces are held in the adapter by a non-marring soft brass clamp ring rather than an ordinary aluminum thumbscrew that contacts the barrel directly. The thumbscrew that tightens the clamp ring is tethered internally in the adapter so that the thumbscrew can't be lost in the field.\u003c\/p\u003e\n\u003cp\u003eWhen using long 1.25\" Barlow lenses in a 2\" diagonal with this adapter, make sure that the end of the Barlow does not touch the diagonal mirror. If there is such a possibility, use the one-half inch taller \u003cstrong\u003e\u003ca href=\"\/televue-high-hat-adapter-1-25-inch-eyepiece-black_p4142.aspx\"\u003e#2715C\u003c\/a\u003e\u003c\/strong\u003e high hat adapter instead to prevent such contact.\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\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":40221641736265,"sku":"2715FC","price":62.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/files\/ACF_2125_2to1.25_FlatTopcopy.jpg?v=1723741724"},{"product_id":"slip-fit-adapter-to-use-non-questar-eyepieces-in-older-questar-3-5-scopes","title":"TeleVue Slip-Fit Adapter to Use Non-Questar Eyepieces in Older Questar 3.5\" Scopes","description":"\u003cp\u003eThis machined aluminum adapter replaces the eyepiece holder tube on an older Questar telescope to allow you to use non-Questar eyepieces in your scope. Older Questar scopes only allow the use of thread-in Questar\/Vernonscope Brandon eyepieces. There is no thumbscrew in the eyepiece holder tube of older scopes to hold smooth barrel non-Questar eyepieces in place. Current Questar scopes have an eyepiece holder similar to this piece. This unit can be used to replace a damaged current thumbscrew eyepiece holder as well as upgrade an older no-thumbscrew scope to the current design.\u003c\/p\u003e\n\u003cp\u003eThis adapter allows the use of smooth barrel non-Questar eyepieces, as well as threaded barrel Brandon eyepieces. In addition to a thumbscrew to hold eyepieces in place, it has the same rotating diopter adjustment as older and current Questar scopes that allows the eyepiece and finderscope to be made parfocal.\u003c\/p\u003e\n\u003cp\u003eTo install the adapter, the older non-thumbscrew tube is simply unthreaded from the scope body by grasping the tube body (not the black knurled rotating ring at the top of the tube) and the new adapter threaded into the scope in its place.\u003c\/p\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":40221644554313,"sku":"2740","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/files\/AQE_0005_QuestarAdaptercopy.jpg?v=1723748488"},{"product_id":"2-eyepiece-barrel-adapter","title":"TeleVue 2\" Eyepiece Barrel Adapter","description":"\u003cp\u003eThe TeleVue 2\" Eyepiece Barrel Extender increases the telescope back focus distance when you cannot rack out your focuser enough to reach focus with certain TeleVue eyepieces. It also provides a mounting location for 2\" (48mm) eyepiece filters to let you use your 2\" filters with dual 2\"\/1.25\" barrel eyepieces, such as the Ethos series.\u003c\/p\u003e\n\u003cp\u003eThe extender can also help parfocalize certain eyepiece combinations. For example, with the extender, the TeleVue 12mm Nagler Type 4 becomes approximately parfocal with the 17mm and 22mm Nagler Type 4 eyepieces when used in a TeleVue 2\" diagonal.\u003c\/p\u003e\n\u003cp\u003eThe field stop of the TeleVue 55mm 2\" Plössl is located near the bottom of the chrome eyepiece barrel. This means that you have to rack your focuser out further relative to most other eyepieces, such as the 27mm TeleVue Panoptic, when using the 55mm TeleVue. If you find that you cannot rack your focuser out enough to achieve focus when switching between the 55mm and other eyepieces, adding the eyepiece extender to the 55mm will make the TeleVue 55mm Plössl eyepiece approximately parfocal with the TeleVue 27mm Panoptic and most other 2\" eyepieces.\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":40221644849225,"sku":"TVEBX","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/5237_1.jpg?v=1662967046"},{"product_id":"2-1-25-equalizing-adapter","title":"TeleVue 2\"\/1.25\" Equalizing Adapter","description":"\u003cp\u003eThis solid machined bronze 2\" to 1.25\" eyepiece adapter weighs a substantial 12 ounces. Using it in place of a lighter (4 ounce) aluminum adapter helps equalize eyepiece weights when switching between heavy 2\" eyepieces and light 1.25\" eyepieces. This eliminates the need to rebalance your telescope when changing eyepieces and is particularly useful with altazimuth mount refractors and low friction Dobsonians.\u003c\/p\u003e\n\u003cp\u003eThe adapter uses a non-marring brass clamp ring to hold 1.25\" eyepieces in place. The base of the adapter is tapered to reflect incoming light harmlessly off to the side, instead of back towards the telescope objective, eliminating any need for special blackening of the underside of the adapter.\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\"\u003e12 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":40221644914761,"sku":"TVEQC","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/files\/BEC_0005_2to1.25_Eq_Bronzecopy.jpg?v=1723666864"},{"product_id":"high-hat-adapter-to-use-1-25-eyepieces-in-2-focusers-matte-satin-finish","title":"TeleVue High Hat Adapter to Use 1.25\" Eyepieces in 2\" Focusers, Matte Satin Finish","description":"\u003cp\u003eThis high hat step-down adapter allows the use of 1.25\" eyepieces in 2\" focuser drawtubes and 2\" star diagonals. The body of the adapter has a non-reflective matte satin black finish. The 2\" barrel of the adapter has an undercut groove that the star diagonal\/focuser thumbscrew sits in when tightened down. The extra depth of this groove reduces the chance of the adapter falling out of the focuser should the thumbscrew loosen. To keep your eyepieces looking new, 1.25\" eyepieces are held in the adapter by a non-marring soft brass clamp ring rather than an ordinary aluminum thumbscrew that contacts the barrel directly. The thumbscrew that tightens the clamp ring is tethered internally in the adapter so that the thumbscrew can't be lost in the field.\u003c\/p\u003e\n\u003cp\u003eThis adapter should be used when long 1.25\" Barlows are used in a 2\" diagonal to lessen the chance of the end of the Barlow touching the diagonal's mirror and scratching it. If your Barlow(s) are short, and you're using the TeleVue #7782PC 2\" SCT diagonal and #7785SC SCT adapter for extra clearance to allow eyepieces to swing through the drive base of many catadioptric scopes, use the #2715FC low profile adapter instead.\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 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":40221647765577,"sku":"2715SC","price":78.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/files\/ASF_8125_2to1.25_Hi_Satincopy.jpg?v=1723741375"},{"product_id":"0-50-diopter-dioptrx-astigmatism-correcting-lens","title":"TeleVue 0.50 Diopter Dioptrx Astigmatism-Correcting Lens","description":"\u003cp\u003eThis Dioptrx accessory lens corrects for an astigmatism of 0.50 diopter. \u003cspan style=\"font-size: 10.909090995788574px;\"\u003e(This would be a\"CYL\" value of 0.50 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 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":40221658873929,"sku":"DRX0050","price":136.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/9314_1.jpg?v=1662967558"},{"product_id":"1-00-diopter-dioptrx-astigmatism-correcting-lens","title":"TeleVue 1.00 Diopter Dioptrx Astigmatism-Correcting Lens","description":"\u003cp\u003eThis Dioptrx accessory lens corrects for an astigmatism of 1.00 diopter. (This would be a\"CYL\" value of 1.00 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 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":40221658939465,"sku":"DRX0100","price":136.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/9316_1.jpg?v=1662967561"},{"product_id":"1-50-diopter-dioptrx-astigmatism-correcting-lens","title":"TeleVue 1.50 Diopter Dioptrx Astigmatism-Correcting Lens","description":"\u003cp\u003eThis Dioptrx accessory lens corrects for an astigmatism of 1.50 diopters. \u003cspan style=\"font-size: 10.909090995788574px;\"\u003e(This would be a\"CYL\" value of 1.50 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 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":40221658972233,"sku":"DRX0150","price":136.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/9318_1.jpg?v=1662967562"},{"product_id":"2-00-diopter-dioptrx-astigmatism-correcting-lens","title":"TeleVue 2.00 Diopter Dioptrx Astigmatism-Correcting Lens","description":"\u003cp\u003eThis Dioptrx accessory lens corrects for an astigmatism of 2.00 diopters. (This would be a \"CYL\" value of 2.00 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\"\u003e\n\u003cp\u003e5 years\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":40221659037769,"sku":"DRX0200","price":136.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/9320_1.jpg?v=1662967565"},{"product_id":"2-25-diopter-dioptrx-astigmatism-correcting-lens","title":"TeleVue 2.25 Diopter Dioptrx Astigmatism-Correcting Lens","description":"\u003cp\u003eThis Dioptrx accessory lens corrects for an astigmatism of 2.25 diopters. (This would be a \"CYL\" value of 2.25 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 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\"\u003e\n\u003cp\u003e5 years\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":40221659070537,"sku":"DRX0225","price":136.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/9321_1.jpg?v=1662967567"},{"product_id":"2-50-diopter-dioptrx-astigmatism-correcting-lens","title":"TeleVue 2.50 Diopter Dioptrx Astigmatism-Correcting Lens","description":"\u003cp\u003eThis Dioptrx accessory lens corrects for an astigmatism of 2.5 diopters. (This would be a \"CYL\" value of 2.50 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 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":40221659136073,"sku":"DRX0250","price":155.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/9322_1.jpg?v=1662967568"},{"product_id":"adapter-to-use-dioptrx-lenses-with-19mm-and-24mm-panoptic-and-20mm-type-5-nagler-eyepieces","title":"TeleVue Adapter to Use Dioptrx Lenses with 19mm and 24mm Panoptic and 20mm Type 5 Nagler Eyepieces","description":"\u003cp\u003eThis adapter converts small eyeguard TeleVue 19mm and 24mm Panoptic and 20mm Type 5 Nagler eyepieces to a larger eyeguard design. This allows these eyepieces to be used with TeleVue Dioptrx astigmatism-correcting lenses. These eyepieces have shorter eye relief than the other TeleVue eyepieces recommended for use with the Dioptrx system, so to minimize any vignetting, it's best to use these eyepieces for deep-sky applications where your eye pupil is large.\u003c\/p\u003e\n\u003cp\u003eThe small eyeguard is removed from the eyepiece and the metal adapter ring is firmly attached to the top of the eyepiece. A supplied hex wrench lets you tighten the setscrew in the side of the adapter ring into the groove at the top of the eyepiece that held the rubber eyeguard in place. Once the adapter ring is installed, the new larger supplied rubber eyeguard is slipped onto the adapter ring, or a Dioptrx lens is first attached to the adapter ring and the rubber eyeguard is in turn slipped onto the Dioptrx lens.\u003c\/p\u003e\n\u003cp\u003eWhen used with binoviewers, you may encounter \"nose relief\" limitations because the Dioptrx lenses reduce the normal eyepiece eye relief by an amount equal to the depth of 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\"\u003e1.5 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":40221660217417,"sku":"DEA0001","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/files\/DEA_0001_Dioptrix_Adaptercopy.jpg?v=1723670986"},{"product_id":"adapter-to-use-dioptrx-lenses-with-type-6-nagler-eyepieces","title":"TeleVue Adapter to Use Dioptrx Lenses with Type 6 Nagler Eyepieces","description":"\u003cp\u003eThis adapter converts small eyeguard TeleVue Type 6 Nagler eyepieces to a larger eyeguard design. This allows these eyepieces to be used with TeleVue Dioptrx astigmatism-correcting lenses. These eyepieces have shorter eye relief than the other TeleVue eyepieces recommended for use with the Dioptrx system, so to minimize any vignetting, it's best to use these eyepieces for deep-sky applications where your eye pupil is large.\u003c\/p\u003e\n\u003cp\u003eThe small eyeguard is removed from the eyepiece and the metal adapter ring is firmly attached to the top of the eyepiece. A supplied hex wrench lets you tighten the setscrew in the side of the adapter ring into the groove at the top of the eyepiece that held the rubber eyeguard in place. Once the adapter ring is installed, the new larger supplied rubber eyeguard is slipped onto the adapter ring, or a Dioptrx lens is first attached to the adapter ring and the rubber eyeguard is in turn slipped onto the Dioptrx lens.\u003c\/p\u003e\n\u003cp\u003eWhen used with binoviewers, it is generally best to remove the Dioptrx lenses from the eyepieces, because limited \"nose relief\" and eye relief will keep you from seeing the Nagler's full 82° field. The new larger eyeguards of the adapters are still fine for use with binocular viewers.\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\"\u003e1.5 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":40221660250185,"sku":"DNA6000","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/13692.jpg?v=1662967603"},{"product_id":"3-00-diopter-dioptrx-astigmatism-correcting-lens","title":"TeleVue 3.00 Diopter Dioptrx Astigmatism-Correcting Lens","description":"\u003cp\u003eThis Dioptrx accessory lens corrects for an astigmatism of 3.00 diopters. (This would be a \"CYL\" value of 3.00 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 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":40221660282953,"sku":"DRX0300","price":155.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/13693.jpg?v=1662967604"},{"product_id":"takahashi-4-turret-1-25-eyepiece-holder","title":"Takahashi 4 Turret 1.25\" Eyepiece Holder","description":"Looking for a quick way to change magnifications and not use a zoom eyepiece?  This great accessory from Takahashi might be the ticket.A night of observing is a wonderful experience.  The only drawback you might have is that you have way too many eyepieces you want to use and tire of continuing to go back and forth into your eyepiece bag.  The Takahashi turret could be your answer.\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe turret has the ability to safely hold four 1.25\" eyepieces for basically any observing needs you might have.  The turret act like a standard 90° star diagonal so your viewing position remains unchanged as you switch between eyepieces.  The Takahashi turret has a click-stop design with an eyepiece indicator mark so you can not only feel, but see when each eyepiece is seated properly.  The eyepieces are held in the turret by means of non-marring compression rings. A twist-ring adjusts the tightness of the compression ring, rather than a thumbscrew. Metal plugs seal four 1.25\" eyepiece holders when the turret diagonal is not in use. \u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe turret has a 2\" nosepiece with safety groove that slips into the 2\" focuser drawtube of your refractor or Cassegrain telescope.  If you have a Schmidt-Cassegrain, however, you will need to purchase an SCT to 2\" eyepiece adapter as the turret will not simply thread onto your rear cell.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe turret takes up a rather small 81mm of backfocus, so most scopes should be able to work without issue.  However, some Takahashi scopes will require an optional extension tube to achieve focus.  The ones that will need it are listed below.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp style=\"margin: 0px; padding: 0px; outline: none; color: #555555; font-family: arial, helvetica, sans-serif; font-size: 12px; background-color: #ffffff;\"\u003eFC-76S\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; outline: none; color: #555555; font-family: arial, helvetica, sans-serif; font-size: 12px; background-color: #ffffff;\"\u003eFSQ-85\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; outline: none; color: #555555; font-family: arial, helvetica, sans-serif; font-size: 12px; background-color: #ffffff;\"\u003eFSQ-106ED\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; outline: none; color: #555555; font-family: arial, helvetica, sans-serif; font-size: 12px; background-color: #ffffff;\"\u003eFSQ-130ED\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; outline: none; color: #555555; font-family: arial, helvetica, sans-serif; font-size: 12px; background-color: #ffffff;\"\u003eMewlon-250CRS\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; outline: none; color: #555555; font-family: arial, helvetica, sans-serif; font-size: 12px; background-color: #ffffff;\"\u003eMewlon-300 CRS\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":40481977958473,"sku":"TAKTUR4","price":640.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/products\/20279.jpg?v=1675379187"},{"product_id":"universal-astro-radian-61-m63-threaded-eyepiece-adapter","title":"Universal Astro Radian 61 M63 Threaded Eyepiece Adapter","description":"\u003cp\u003eThis appears to be an eyepiece adapter that Radian 61 owners could thread onto the back of their telescope.  It is M63 threaded and has a brass compression ring that is tightend using three screws around the perimeter.  \u003c\/p\u003e\n\u003cp\u003eThis should thread into any M63 thread and provide you with an eyepiece holder if you so desire.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Universal Astro","offers":[{"title":"Default Title","offer_id":41403419033673,"sku":"UAM63","price":4.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/files\/img_1004.jpg?v=1716193911"},{"product_id":"universal-astro-2-to-1-25-accessory-adapter","title":"Universal Astro 2\" To 1.25\" Accessory Adapter","description":"\u003cp\u003eThis Universal Astro 2\" to 1.25\" eyepiece adapter lets you use 1.25\" accessories in a 2\" focuser or star diagonal . . \u003cmeta charset=\"UTF-8\"\u003e\u003c\/p\u003e\n\u003cp\u003eThis Universal Astro 2\" to 1.25\" eyepiece adapter slips into your telescope's 2\" focuser or eyepiece holder to let you use a 1.25\" star diagonal, image erecting diagonal, or photographic accessories in your 2\" focuser. It also lets you use 1.25\" eyepieces in an existing 2\" star diagonal.\u003c\/p\u003e\n\u003cp\u003eThe Universal adapter uses a non-marring soft brass compression ring to hold your 1.25\" accessories in place. The compression ring won't scratch the barrel of your star diagonal and accessories as an ordinary thumbscrew can. A chromed thumbscrew lets you adjust the tension on the compression ring.\u003c\/p\u003e\n\u003cp\u003eThe bottom of the 2\" barrel of the adapter is threaded to hold 2\" light pollution and neutral density filters.\u003c\/p\u003e\n\u003cp\u003eThe body of the adapter is made of machined aluminum, anodized black for long life.  It also has smooth sides with no undercuts, taper, or anything to potentially interfere with other compression rings.\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\"\u003e3.5 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\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Universal Astro","offers":[{"title":"Default Title","offer_id":41465478316105,"sku":"UA125EPA","price":7.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7974\/9961\/files\/image_6338cfa6-8640-4e69-87e5-707e41e317e4.jpg?v=1717152865"}],"url":"https:\/\/astronomics.com\/collections\/eyepiece-adapters.oembed?page=2","provider":"Astronomics","version":"1.0","type":"link"}