Call 800-422-7876
Products
Filters
- Accessory Kit (11)
- Accessory Tray (2)
- Adapter (25)
- Altazimuth Mount (14)
- Auto Guider (4)
- Barlow (15)
- Battery (9)
- bino (1)
- Binocular (62)
- binocular (1)
- Binoviewer (1)
- Book (14)
- Cable (14)
- Camera (12)
- Camera Adapter (22)
- Camera Tracking Platform (10)
- Cap (9)
- Case (27)
- Chair (1)
- Cleaning (2)
- Collimator (18)
- Color Camera (20)
- Computer (7)
- Controller (2)
- Corrector (3)
- Counterweight (35)
- Counterweight Shaft (7)
- Cover (44)
- Dew Controller (3)
- Dew Heater (31)
- Dew Shield (75)
- Diagonal (17)
- Dovetail (52)
- Drive (2)
- Encoders (1)
- Equatorial Mount (28)
- Extension Tube (8)
- Eyepiece (209)
- Fan (1)
- Filter (54)
- Filter Adapter (1)
- Filter Wheel (14)
- Finder Base (9)
- Finder Bracket (4)
- Finderscope (30)
- Flashlight (7)
- Flattener (22)
- Focuser (30)
- focuser (1)
- Focuser Adapter (16)
- Focusing Aid (14)
- Gift Card (1)
- GPS (1)
- Guidescope (4)
- Hand Control (3)
- Handle (3)
- Illuminator (4)
- Image Erecting Diagonal (1)
- Knob (1)
- Monochrome Camera (20)
- Moon Map (1)
- Mount (91)
- mount (2)
- Mount Accessory (17)
- Mount Adapter (15)
- Off Axis Guider (5)
- Phone Adapter (7)
- Pier (2)
- Pier Extension (17)
- Piggyback Adapter (4)
- Polar Finder (15)
- Power Supply (12)
- Red Dot Finderscope (3)
- Reducer (51)
- refractor (1)
- Saddle (8)
- Shroud (12)
- Slow Motion Cable (1)
- Smart Telescope (6)
- Solar Filter (21)
- Solar Finderscope (1)
- Solar Telescope (5)
- Solar Wedge (2)
- spa (1)
- Spacer (14)
- Spotting Scope (13)
- Star Charts (2)
- Star Diagonal (2)
- T-Ring (17)
- T-Shirt (2)
- Telescope (279)
- Tripod (23)
- Tube Holder (10)
- Tube Ring (3)
- Vibration Reduction (1)
- Visual Back (4)
- Wedge (3)
- WiFi (4)
- Wireless (2)
- Antares (17)
- Astro Media (2)
- Astro-Tech (145)
- Astronomics (5)
- Astrozap (123)
- Bob's Knobs (10)
- Bushnell (1)
- Cambridge Press (1)
- Celestron (346)
- Coronado (7)
- Datalizer (4)
- Explore Scientific (94)
- Firefly Press (1)
- iOptron (217)
- JMI (2)
- Losmandy (71)
- Lunt Solar Systems (4)
- Manfrotto (1)
- Meade (12)
- Olivon (2)
- Optolong (19)
- Pentax (13)
- Questar (21)
- question (2)
- Rigel Systems (5)
- SBIG (4)
- Sky Publishing (7)
- Sky Rover (80)
- Sky-Watcher (117)
- Software Bisque (4)
- Spectrum Optical (3)
- Spectrum Optics (6)
- Starlight Instruments (22)
- Takahashi (90)
- TeleGizmos (43)
- TeleVue (183)
- Telrad (8)
- Thousand Oaks (29)
- Universal Astro (3)
- universe (1)
- Various Manufacturers (3)
- Vernonscope (13)
- Vixen (1)
- William Optics (1)
- ZWO (109)
- Astro-Tech CFT Refractor (1)
- Astro-Tech ED Refractors (6)
- Astro-Tech EDL Refractors (4)
- Astro-Tech EDP Refractor (1)
- Astro-Tech EDQ Refractors (4)
- Astro-Tech EDT Refractors (5)
- Astro-Tech EDX Refractors (2)
- Astro-Tech Imaging Newtonians (4)
- Astro-Tech Ritchey-Chretiens (9)
- Celestron Advanced VX (13)
- Celestron AstroMaster (8)
- Celestron CGEM II (9)
- Celestron CGX (10)
- Celestron CGX-L (9)
- Celestron CPC (6)
- Celestron EdgeHD Optical Tubes (4)
- Celestron LCM (2)
- Celestron NexStar Evolution (4)
- Celestron NexStar SE (4)
- Celestron NexStar SLT (4)
- Celestron Omni XLT (4)
- Celestron Optical Tube Assemblies (2)
- Celestron Origin (3)
- Celestron PowerSeeker (9)
- Celestron RASA Optical Tubes (4)
- Celestron SCT Optical Tubes (4)
- Celestron StarSense Explorer (11)
- Celestron Travel Scope (3)
- Explore Scientific APO Triplet Carbon Fiber (4)
- Explore Scientific APO Triplet FCD100 Carbon Fiber (5)
- Explore Scientific APO Triplet FCD100 Series (4)
- Explore Scientific APO Triplets Essential Series (7)
- Explore Scientific AR Doublet (3)
- Explore Scientific Newtonian Reflectors (3)
- Explore Scientific Solid Tube Dobsonian (3)
- Explore Scientific Truss Dobsonians (4)
- Questar 3.5” Maksutov Cassegrains (15)
- Questar 7” Maksutov Cassegrains (3)
- Sky Rover Ultra Flat Field (8)
- Sky-Watcher Espirit (4)
- Sky-Watcher GoTo Collapsible Dobsonians (5)
- Sky-Watcher Heritage Dobsonians (2)
- Sky-Watcher Maksutov Telescopes (7)
- Sky-Watcher Pro ED APO (7)
- Sky-Watcher Quattro Imaging Newtonians (4)
- Sky-Watcher Traditional Dobsonians (3)
- Sky-Watcher Truss Tube Collapsible Dobsonians (3)
- Sky-Watcher Virtuoso (3)
- Spectrum DS (3)
- Takahashi Epsilon (2)
- Takahashi FC (5)
- Takahashi FS (2)
- Takahashi FSQ (2)
- Takahashi TOA and TSA (3)
- TeleVue Doublet APO (5)
- TeleVue Nagler-Petzval APO (3)
- ZWO FF Series (4)
- ZWO Seestar (3)
- Astro-Tech Paradigm Dual ED (7)
- Astro-Tech PF (5)
- Astro-Tech UWA (7)
- Astro-Tech Value Line Plossls (1)
- Astro-Tech XWA (6)
- Celestron Luminos (6)
- Celestron Omni Plossls (8)
- Celestron Ultima Edge (4)
- Celestron X-Cel LX (7)
- Explore Scientific 100º (6)
- Explore Scientific 52º (9)
- Explore Scientific 62º (7)
- Explore Scientific 68º (6)
- Explore Scientific 82º (9)
- Explore Scientific 92º (2)
- Pentax XW (10)
- Pentax Zoom (2)
- TeleVue DeLites (9)
- TeleVue Delos (9)
- TeleVue Dioptrix (11)
- TeleVue Ethos (8)
- TeleVue Naglers (12)
- TeleVue Panoptics (5)
- TeleVue Plossls (8)
- Vernonscope Brandon (6)
- Vernonscope Brandon Flat Tops (6)
- Celestron Cometron (2)
- Celestron Nature DX (8)
- Celestron Outland (4)
- Celestron SkyMaster (11)
- Celestron Ultima (5)
- Celestron Upclose (10)
- Celestron Explorascope (1)
- iOptron HEM (9)
- iOptron HAE (12)
- iOptron HAZ (3)
- iOptron CEM (14)
- iOptron GEM (15)
- iOptron Photron (7)
- iOptron Imaging Newtonian (3)
- Takahashi Mewlon (2)
- MirroSky Series (5)
- Up To 3mm (3)
- 3.1mm-5mm (22)
- 5.1mm-7mm (21)
- 7.1mm-10mm (27)
- 10.1mm-13mm (20)
- 13.1mm-16mm (23)
- 16.1mm-19mm (17)
- 19.1mm-21mm (9)
- 21.1mm-24mm (12)
- 24.1mm-27mm (10)
- 27.1mm and Up (28)
- Zoom (5)
- Up to 400mm (31)
- 401mm-800mm (117)
- 801mm-1200mm (66)
- 1201mm-1600mm (51)
- 1601mm-2000mm (6)
- 2001mm-2400mm (34)
- 2401mm-2800mm (20)
- 2801mm-3200mm (3)
- 3200mm and Up (6)
- Alt-Azimuth - Manual Control (34)
- Alt-Azimuth - GoTo (38)
- Alt-Azimuth - Motorized (13)
- Camera Tracking Platform (3)
- Dobsonian (29)
- Equatorial - Manual Control (12)
- Equatorial - GoTo (119)
- Equatorial - Motorized (2)
- Dual - AZ/EQ (29)
- No Mount Included - OTA Only (117)
- Tripod (10)
- Dobsonian - Computerized GoTo (2)
-
Original price $5,595.00 - Original price $5,595.00Original price$5,595.00$5,595.00 - $5,595.00Current price $5,595.00| /
Questar 3.5" Telescope Standard, Magnesium Fluoride Coatings
QuestarSold OutOptical theory says that a Questar should not be able to resolve lunar craterlets and rilles under 1.3 arc seconds across - yet there are countless...
View full detailsOriginal price $5,595.00 - Original price $5,595.00Original price$5,595.00$5,595.00 - $5,595.00Current price $5,595.00| /Sold out -
Original price $6,644.00 - Original price $6,644.00Original price$6,644.00$6,644.00 - $6,644.00Current price $6,644.00| /
Questar 3.5" Telescope Standard, Magnesium Fluoride Coatings, Factory-Installed Powerguide III
QuestarSold OutWith the factory-installed addition of the normally-optional battery-operated Powerguide III drive system, the standard Questar 3.5" Maksutov-Casse...
View full detailsOriginal price $6,644.00 - Original price $6,644.00Original price$6,644.00$6,644.00 - $6,644.00Current price $6,644.00| /Sold out -
Original price $11,895.00 - Original price $11,895.00Original price$11,895.00$11,895.00 - $11,895.00Current price $11,895.00| /
Questar 7" Astro Maksutov-Cassegrain
QuestarSold OutObserve through a Questar Seven Astro, and you'll see detail and clarity in the skies that you have never seen through a lesser scope, or even thro...
View full detailsOriginal price $11,895.00 - Original price $11,895.00Original price$11,895.00$11,895.00 - $11,895.00Current price $11,895.00| /Sold out -
Original price $12,795.00 - Original price $12,795.00Original price$12,795.00$12,795.00 - $12,795.00Current price $12,795.00| /
Questar 7" Classic Titanium Maksutov-Cassegrain, Broadband Coatings
QuestarSold OutThere are mere mortal telescopes and then there is the Questar Seven Classic Titanium with broadband coatings, which inhabits a higher plane of ast...
View full detailsOriginal price $12,795.00 - Original price $12,795.00Original price$12,795.00$12,795.00 - $12,795.00Current price $12,795.00| /Sold out -
Original price $14,695.00 - Original price $14,695.00Original price$14,695.00$14,695.00 - $14,695.00Current price $14,695.00| /
Questar 7" Classic Titanium Maksutov-Cassegrain, Magnesium Fluoride AR and Silver Reflecting Coatings, Quartz Mirror
QuestarSold OutThis Questar Seven Classic Titanium uses the same quartz mirror and coatings combination as the renowned 50th Anniversary 3.5" Questar, perhaps the...
View full detailsOriginal price $14,695.00 - Original price $14,695.00Original price$14,695.00$14,695.00 - $14,695.00Current price $14,695.00| /Sold out -
Original price $595.00 - Original price $595.00Original price$595.00$595.00 - $595.00Current price $595.00| /
Questar Achromatic 0.44x Focal Reducer
questionSold OutThis Questar 0.44x achromatic focal reducer gives you faster photographic speeds with both 3.5" and 7" Questars. This 100mm focal length positive a...
View full detailsOriginal price $595.00 - Original price $595.00Original price$595.00$595.00 - $595.00Current price $595.00| /Sold out -
Original price $595.00 - Original price $595.00Original price$595.00$595.00 - $595.00Current price $595.00| /
Questar Achromatic 0.6x Focal Reducer
questionSold OutThis Questar 0.6x achromatic focal reducer gives you faster photographic speeds with both 3.5" and 7" Questars. This 130mm focal length positive ac...
View full detailsOriginal price $595.00 - Original price $595.00Original price$595.00$595.00 - $595.00Current price $595.00| /Sold out -
Original price $4,495.00 - Original price $4,495.00Original price$4,495.00$4,495.00 - $4,495.00Current price $4,495.00| /
Questar Birder, 90mm Telescope, 40/60x
QuestarSold OutAbsolutely pinpoint resolution, total freedom from spurious color and distortion, an image clarity and contrast in a class all its own - the Questa...
View full detailsOriginal price $4,495.00 - Original price $4,495.00Original price$4,495.00$4,495.00 - $4,495.00Current price $4,495.00| /Sold out -
Original price $4,895.00 - Original price $4,895.00Original price$4,895.00$4,895.00 - $4,895.00Current price $4,895.00| /
Questar Birder, 90mm Telescope, Broadband Coatings, 40/60x, Finder, Rapid Focus, Case
QuestarSold OutWhen you need absolutely pinpoint resolution, total freedom from spurious color and distortion, and the highest possible light transmission and con...
View full detailsOriginal price $4,895.00 - Original price $4,895.00Original price$4,895.00$4,895.00 - $4,895.00Current price $4,895.00| /Sold out -
Original price $5,295.00 - Original price $5,295.00Original price$5,295.00$5,295.00 - $5,295.00Current price $5,295.00| /
Questar Birder, 90mm Telescope, Broadband Coatings, Zerodur Mirror, 40/60x, Finder, Rapid Focus, Case
QuestarSold OutThis is it. The broadband-coated/Zerodur mirror Questar Birder is the ultimate spotting scope . . . This Questar Birder with broadband optical coat...
View full detailsOriginal price $5,295.00 - Original price $5,295.00Original price$5,295.00$5,295.00 - $5,295.00Current price $5,295.00| /Sold out -
Original price $4,195.00 - Original price $4,195.00Original price$4,195.00$4,195.00 - $4,195.00Current price $4,195.00| /
Questar Field Model, 90mm Reflector Telescope, Broadband Coatings, 53/80x, Case
QuestarSold OutFor absolutely exquisite and detailed long distance observing, no scope beats the images of this "legendary" Questar Field Model with broadband opt...
View full detailsOriginal price $4,195.00 - Original price $4,195.00Original price$4,195.00$4,195.00 - $4,195.00Current price $4,195.00| /Sold out -
Original price $3,795.00 - Original price $3,795.00Original price$3,795.00$3,795.00 - $3,795.00Current price $3,795.00| /
Questar Field Model, 90mm Telescope, 53/80x, Case
QuestarSold OutOne of our customers from Nebraska called up shortly after he received his Questar Field Model to say his scope clearly showed the power line into ...
View full detailsOriginal price $3,795.00 - Original price $3,795.00Original price$3,795.00$3,795.00 - $3,795.00Current price $3,795.00| /Sold out -
Original price $4,595.00 - Original price $4,595.00Original price$4,595.00$4,595.00 - $4,595.00Current price $4,595.00| /
Questar Field Model, 90mm, Broadband Coatings, Zerodur Mirror, 53/80x, Case
QuestarSold OutWith all due respect to the other spotting scopes shown on this site, there can only be one "best spotting scope in the world." This Questar Field ...
View full detailsOriginal price $4,595.00 - Original price $4,595.00Original price$4,595.00$4,595.00 - $4,595.00Current price $4,595.00| /Sold out -
Original price $6.00 - Original price $6.00Original price$6.00$6.00 - $6.00Current price $6.00| /
Replacement Telrad reticle
TelradMore on the wayTelrad Replacement Reticle Restore the Precision of Your Telrad Finder Over time, even the most dependable equipment can show signs of wear—and the...
View full detailsOriginal price $6.00 - Original price $6.00Original price$6.00$6.00 - $6.00Current price $6.00| / -
Original price $53.95 - Original price $53.95Original price$53.95$53.95 - $53.95Current price $53.95| /
Rigel QuikFinder Illuminated red bullseye finder
Rigel SystemsIn StockThis straight-through viewing non-magnifying finder has a bull's-eye reticle, rather than a red dot. When you look at the sky through the tilted cl...
View full detailsOriginal price $53.95 - Original price $53.95Original price$53.95$53.95 - $53.95Current price $53.95| / -
Original price $31.95 - Original price $31.95Original price$31.95$31.95 - $31.95Current price $31.95| /
Rigel Skylite Mini Compact Variable Brightness Two-Color LED Astronomer's Flashlight
Rigel SystemsMore on the wayThe compact 3.5" long Skylite Mini variable brightness flashlight provides two different colors of light - blue-white to help you set up and take ...
View full detailsOriginal price $31.95 - Original price $31.95Original price$31.95$31.95 - $31.95Current price $31.95| / -
Original price $39.95 - Original price $39.95Original price$39.95$39.95 - $39.95Current price $39.95| /
Rigel Skylite Water-Resistant Variable Brightness Two-Color LED Astronomer's Flashlight
Rigel SystemsMore on the wayThe water-resistant Skylite variable brightness flashlight provides two different colors of light - blue-white to help you set up and take down yo...
View full detailsOriginal price $39.95 - Original price $39.95Original price$39.95$39.95 - $39.95Current price $39.95| / -
Original price $24.95 - Original price $24.95Original price$24.95$24.95 - $24.95Current price $24.95| /
Rigel Starlite Mini Compact Variable Brightness Red LED Astronomer's Flashlight
Rigel SystemsIn StockThe compact 3.5" long Starlite Mini variable brightness flashlight uses two red LEDs (Light Emitting Diodes) to help you read star charts and opera...
View full detailsOriginal price $24.95 - Original price $24.95Original price$24.95$24.95 - $24.95Current price $24.95| / -
Original price $33.95 - Original price $33.95Original price$33.95$33.95 - $33.95Current price $33.95| /
Rigel Starlite Water-Resistant Variable Brightness Red LED Astronomer's Flashlight
Rigel SystemsMore on the wayThe water-resistant 5" long Starlite variable brightness flashlight uses two red LEDs (Light Emitting Diodes) to help you read star charts and oper...
View full detailsOriginal price $33.95 - Original price $33.95Original price$33.95$33.95 - $33.95Current price $33.95| / -
Original price $695.00 - Original price $695.00Original price$695.00$695.00 - $695.00Current price $695.00| /
SBIG FW5-8300 Color filter wheel only for SBIG ST-8300 CCD cameras, without filters
SBIGSold OutTHIS PRODUCT HAS BEEN DISCONTINUED AND IS NO LONGER FOR SALE. THIS PAGE IS HERE FOR INFORMATIONAL PURPOSES ONLY. This SBIG FW5-8300 filter wheel (...
View full detailsOriginal price $695.00 - Original price $695.00Original price$695.00$695.00 - $695.00Current price $695.00| /Sold out -
Original price $749.00 - Original price $749.00Original price$749.00$749.00 - $749.00Current price $749.00| /
SBIG Research Series 2" RBG+C+L Filters
SBIGSold OutTHIS PRODUCT HAS BEEN DISCONTINUED AND IS NO LONGER FOR SALE. THIS PAGE IS HERE FOR INFORMATIONAL PURPOSES ONLY. This 50mm LRBGC five filter set d...
View full detailsOriginal price $749.00 - Original price $749.00Original price$749.00$749.00 - $749.00Current price $749.00| /Sold out -
Original price $495.00 - Original price $495.00Original price$495.00$495.00 - $495.00Current price $495.00| /
SBIG STT/STLX/STX Remote Guiding Head
SBIGMore on the wayThe SBIG Remote Guider Head lets you guide on stars of undiminished brightness when imaging through a color filter wheel with an SBIG Research Seri...
View full detailsOriginal price $495.00 - Original price $495.00Original price$495.00$495.00 - $495.00Current price $495.00| / -
Original price $49.00 - Original price $49.00Original price$49.00$49.00 - $49.00Current price $49.00| /
SBIG T-Thread Visual Back to Use Color Filter Wheels and/or CCD Cameras on SCT Scopes
SBIGMore on the wayThe 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 . ...
View full detailsOriginal price $49.00 - Original price $49.00Original price$49.00$49.00 - $49.00Current price $49.00| / -
Original price $850.00 - Original price $850.00Original price$850.00$850.00 - $850.00Current price $850.00| /
SE-L Tall wood tripod for EM-200 equatorial mount
TakahashiMore on the wayThe Takahashi SE-L is a tall fixed-height wood tripod. The substantial (26 lb.) tripod is designed for use with the Takahashi EM-200 equatorial mou...
View full detailsOriginal price $850.00 - Original price $850.00Original price$850.00$850.00 - $850.00Current price $850.00| /