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1.25" Nose Piece Camera Adpter
Starizona$18.95Use this adapter to connect a T-ring or T-mount camera to a 1.25" focuser. Low profile design keeps backfocus short. Threaded for standard 1.25" fi...
View full details$18.95In Stock -
In Stock
16.5mm T-Spacer
Starizona$24.95Use this female T-thread to male T-thread spacer to extend standard T-thread adapters by 16.5mm.
$24.95In Stock -
1600GTO German Equatorial Mount with Extended Temperature Absolute Encoders - Includes APCC-PRO and PEMPro
Astro-Physics$19,570.00Why a 1600GTO? Thirty plus years of mount design and building expertise has been employed to engineer and manufacture our new 1600GTO mount into th...
View full details$19,570.00 -
1600GTO German Equatorial Mount with Standard Temperature Absolute Encoders - Includes APCC-PRO and PEMPro
Astro-Physics$18,950.00Why a 1600GTO? Thirty plus years of mount design and building expertise has been employed to engineer and manufacture our new 1600GTO mount into th...
View full details$18,950.00 -
1600GTO German Equatorial Mount. Includes APCC-PRO and PEMPro
Astro-Physics$13,450.00Why a 1600GTO? Thirty plus years of mount design and building expertise has been employed to engineer and manufacture our new 1600GTO mount into th...
View full details$13,450.00 -
16mm 68° Series
Explore Scientific$219.9916mm Focal Length 68° Apparent Field Argon-purged Waterproof EMD Coatings 1.25" Barrel
$219.99 -
16mm Nagler - Type 5
Tele Vue$369.00This is a scaled down version of the "king of the field" 31mm Nagler Type 5.The new 16mm Nagler Type 5 is a smaller, lighter (0.45 lbs.), 1.25" onl...
View full details$369.00 -
17.3mm Delos
TeleVue$387.00Tele Vue is pleased to introduce the Delos, mid-to-short focal length line of 20mm eye-relief, 72° apparent field of view eyepieces. Every optical,...
View full details$387.00 -
17mm 92° Long Eye Relief Eyepiece
Explore Scientific$799.99Explore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 92° Series™ eyepieces are hyper-wide class oculars that can transfor...
View full details$799.99 -
17mm Ethos
TeleVue$795.00The Televue 17mm Ethos Eyepiece provides a 100° apparent field for a true "spacewalk" view of the night sky. Distortion correction, high contrast a...
View full details$795.00 -
17mm Nagler - Type 4
TeleVue$398.00The Nagler eyepiece represents the ultimate in the visual stargazing experience. With an 82-degree field of view, and tack-sharp, high-contrast opt...
View full details$398.00 -
18mm 82° Series Argon-Purged
Explore Scientific$319.95Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coating...
View full details$319.95 -
19mm Panoptic
TeleVue$274.00Modifying Al Nagler's patented Wide-Field eyepiece and adding high index glasses to the 6-element system, the Panoptic design approaches "Nagler" p...
View full details$274.00 -
In Stock
1mm M48 to M42 Original RASA8 Filter Slider Adapter
Starizona$19.95This replacement adapter came with the original Starizona RASA8 Filter Slider converting the bottom M48 to M42 and adding 1mm to the Filter Slider ...
View full details$19.95In Stock -
2" Advanced Convertible Photo-Visual Barlow
Astro-Physics$285.00Our Advanced Convertible Barlow has a unique design that provides several configurations to increase the focal length of your telescope. It was de...
View full details$285.00 -
In Stock
2" Nosepiece for SkyWatcher EvoStar ED Reducer
Starizona$49.00This adapter threads into the front (telescope side) threads of the SkyWatcher EvoStar ED focal reducer, allowing the reducer to be placed directly...
View full details$49.00In Stock -
2" to 1.25" Adapter with Twist-Lock
Celestron$44.95The Celestron 2” to 1.25” Adapter with Twist-Lock was designed for visual observers who use both 2” and 1.25” eyepieces regularly and need a quick...
View full details$44.95 -
2'' Long Extension
TeleVue$68.002" diameter extension tube, adds 2" of length to optical path. Ideal for achieving focus with eyepieces or cameras. Features brass clamp ring.
$68.00 -
2-inch XLT Diagonal (SCT)
Celestron$159.95Introducing Celestron's new 2" XLT Diagonal. This high quality multi-coated mirror diagonal allows you to take advantage of the wider field of view...
View full details$159.95 -
2.5x Powermate
TeleVue$229.00Powermate Concept: While Barlows are powerful tools, the negative element defining them also limits their ability. The simple negative element Barl...
View full details$229.00 -
In Stock
2023 Night Sky Almanac: A Month-by-Month Guide to North America's Skies from the Royal Astronomical Society of Canada Book
The Royal Astronomical Society of Canada$14.95A portable guidebook for enjoying the night sky in 2023. 2023 Night Sky Almanac is the ideal resource for both novice and experienced sky watcher...
View full details$14.95In Stock -
20mm 100° Series Argon-Purged
Explore Scientific$799.99Nitrogen-Purged and Waterproof: Internally sealed and purged with inert, dry nitrogen gas to prevent internal fogging, to halt the intrusion of fin...
View full details$799.99 -
20mm 68° Series
Explore Scientific$219.9920mm Focal Length 68° Apparent Field Argon-purged Waterproof EMD Coatings 1.25" Barrel
$219.99 -
21mm Ethos
TeleVue$894.00Maximize your "spacewalk" experience with the 21mm Ethos. Transform your passage through the Milky Way with the 21mm’s nexus of contrast, power and...
View full details$894.00 -
22mm Nagler - Type 4
TeleVue$487.00The Nagler eyepiece represents the ultimate in the visual stargazing experience. With an 82-degree field of view, and tack-sharp, high-contrast opt...
View full details$487.00 -
24mm 68° Series
Explore Scientific$269.9924mm Focal Length 68° Apparent Field Argon-purged Waterproof EMD Coatings 1.25" Barrel
$269.99 -
24mm 82° Series Argon-Purged
Explore Scientific$439.99Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coating...
View full details$439.99 -
24mm Panoptic
TeleVue$352.00The newest Panoptic eyepiece is a 1.25" model with a weight of just 0.5 pounds. It has the same 68-degree apparent field as the other Panoptic eyep...
View full details$352.00 -
25mm 100° Series Argon-Purged
Explore Scientific$999.99Explore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 100° Series™ eyepieces are hyper-wide class oculars that can transfo...
View full details$999.99 -
28mm 68° Series
Explore Scientific$299.9928mm Focal Length 68° Apparent Field Argon-purged Waterproof EMD Coatings 2" Barrel
$299.99 -
2x Big Barlow
TeleVue$229.00Properly designed Barlows do wonderful things. First, they amplify power while retaining the eyepiece's eye-relief. Second, they slow the telescope...
View full details$229.00 -
2x Powermate - 2''
TeleVue$343.00Powermate Concept: While Barlows are powerful tools, the negative element defining them also limits their ability. The simple negative element Barl...
View full details$343.00 -
3.5'' Long Extension
TeleVue$68.002" diameter extension tube, adds 3.5" of length to optical path. Ideal for achieving focus with eyepieces or cameras. Features brass clamp ring.
$68.00 -
3.5mm Delos
TeleVue$387.00Tele Vue is pleased to introduce the Delos, mid-to-short focal length line of 20mm eye-relief, 72° apparent field of view eyepieces. Every optical,...
View full details$387.00 -
3.5mm Nagler - Type 6
TeleVue$335.00The 7-element, Nagler Type 6 design is based on the original patented Nagler design. This new 7-element design update for the short focal length Na...
View full details$335.00 -
3.7mm Ethos SX
TeleVue$658.00With 110°, the Ethos-SX has 21% more apparent FOV area than the 100° Ethos design. This permits a nice 62% power increase from a 6mm Ethos, while r...
View full details$658.00 -
30mm 100° Series Argon-Purged - 3" Barrel
Explore Scientific$1,099.99Argon-Purged and Waterproof: Internally sealed and purged with inert, dry nitrogen gas to prevent internal fogging, to halt the intrusion of fine p...
View full details$1,099.99 -
30mm 82° Series Argon-Purged
Explore Scientific$499.99Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coating...
View full details$499.99 -
31mm Nagler - Type 5
TeleVue$698.00This is the ultimate eyepiece! The 82-degree apparent field, edge-to-edge sharpness, and high contrast combine to deliver the most stunning views i...
View full details$698.00 -
In Stock
32mm Omni
Celestron$67.95If you are looking to move up to a higher quality eyepiece the Omni series provides more enhanced features in a wider selection of focal lengths. C...
View full details$67.95In Stock -
34mm 68° Series
Explore Scientific$419.9934mm Focal Length 68° Apparent Field Argon-purged Waterproof EMD Coatings 2" Barrel
$419.99 -
35mm Panoptic
TeleVue$428.00Modifying Al Nagler's patented Wide-Field eyepiece and adding high index glasses to the 6-element system, the Panoptic design approaches "Nagler" p...
View full details$428.00 -
In Stock
365 Starry Nights : An Introduction to Astronomy for Every Night of the Year book
Fireside$18.00THE AMATEUR STARGAZER'S ULTIMATE HOME COMPANION 365 Starry Nights is a unique and fascinating introduction to astronomy designed to give you a comp...
View full details$18.00In Stock -
In Stock
4.2mm Filter Slider Adapter
Starizona$19.95This adapter adds 4.2mm to your Starizona Filter Slider making it 21.7mm in total length, compensating for the .7mm that a standard Filter adds to ...
View full details$19.95In Stock -
4.5mm Delos
TeleVue$387.00Tele Vue is pleased to introduce the Delos, mid-to-short focal length line of 20mm eye-relief, 72° apparent field of view eyepieces. Every optical,...
View full details$387.00 -
4.7mm 82° Series Argon-Purged
Explore Scientific$229.99Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coating...
View full details$229.99