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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$67.95 -
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 -
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$18.00 -
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 -
4.7mm Ethos SX
TeleVue$658.00Al Nagler eagerly pushed Ethos designer Paul Dellechiaie to extend the new 3.7mm focal length to reach 110°, the same field size as the LEM Simulat...
View full details$658.00 -
40mm 68° Series
Explore Scientific$519.9940mm Focal Length 68° Apparent Field Argon-purged Waterproof EMD Coatings 2" Barrel
$519.99 -
In Stock
40mm Omni Eyepiece - 1.25"
Celestron$49.95Omni eyepieces offer a quality 4-element Plössl optical design at a super affordable price Rubber eyecups provide comfort and increase contrast....
View full details$49.95In Stock -
41mm Panoptic
TeleVue$576.00The 41mm Panoptic eyepiece is a big brother to the 24mm Panoptic (largest 1.25" field). With its 46mm field stop, the 41mm Panoptic delivers the la...
View full details$576.00 -
45-Degree Erect Image Diagonal - 1.25"
Celestron$51.95A great accessory for daytime terrestrial viewing with your telescope This 1.25” diagonal produces right side up and left-to-right correct images...
View full details$51.95 -
4x Powermate
TeleVue$350.00Powermate Concept: While Barlows are powerful tools, the negative element defining them also limits their ability. The simple negative element Barl...
View full details$350.00 -
5.5mm 100° Series Argon-Purged
Explore Scientific$549.99Explore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 100° Series™ eyepieces are hyper-wide class oculars that can transfo...
View full details$549.99 -
50 Things to See on the Moon: A first-time stargazer's guide book
Formac$16.95The moon is our nearest neighbor in space, it's easy to find, it's bright, and you don't have to go anywhere special to view it. Astronomer John A....
View full details$16.95 -
In Stock
50.8mm Unmounted Filter Holder to 48mm
Starizona$29.99This adapter enables you to mount your unmounted 50.8mm filters to 48mm threads. This mount will allow you to use unmounted 50.8mm filters with Sta...
View full details$29.99In Stock -
55mm Plossl
TeleVue$256.00Since Tele Vue introduced their Plössls in 1980, they have won praise and patents, including a patent in Japan. Tele Vue Plössls, designed by Al Na...
View full details$256.00 -
5mm Nagler - Type 6
Tele Vue$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 -
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 -
6.7mm 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 -
60º Everbrite Diagonal - 1.25''
TeleVue$322.00This is an entirely new angle for TeleVue! It's a real breakthrough for birding and terrestrial viewing; the perfect combination of comfort and per...
View full details$322.00 -
In Stock
6mm 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$387.00In Stock -
6mm Ethos
TeleVue$618.00The Televue 6mm Ethos eyepiece provides a 100° apparent field for a true "spacewalk" view of the night sky. Distortion correction, high contrast an...
View full details$618.00 -
7mm Nagler - Type 6
Tele Vue$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 -
7x50mm Square Filter Wheel
ZWO$599.00Description The 50mm electronic filter wheel is CNC milled from an aircraft-graded aluminum block. Quality guaranteed! Adopting the qu...
View full details$599.00 -
8-Inch Dovetail Bar (CGE)
Celestron$45.95Dovetail for mounting a Celestron 8" SCT to a Celestron CGE-style or Losmandy D-style saddle plate or for piggybacking a guidescope or camera. Plea...
View full details$45.95 -
8.8mm 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 -
8mm 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 -
8mm Ethos
TeleVue$618.00The Televue 8mm Ethos eyepiece provides a 100° apparent field for a true "spacewalk" view of the night sky. Distortion correction, high contrast an...
View full details$618.00 -
8” Rowe-Ackermann Schmidt Astrograph (RASA 8) Optical Tube Assembly with CGE Dovetail
Celestron$2,079.00Flat field free of optical aberrations like field curvature, coma, astigmatism and chromatic aberration across an entire APS-C sensor. Unlike the ...
View full details$2,079.00 -
9.25-Inch Dovetail Bar (CGE)
Celestron$56.95Dovetail for mounting a Celestron 9.25" SCT to a Celestron CGE-style or Losmandy D-style saddle plate or for piggybacking a guidescope or camera.
$56.95 -
9mm 100° Series Argon-Purged
Explore Scientific$579.99Explore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 100° Series™ eyepieces are hyper-wide class oculars that can transfo...
View full details$579.99 -
9mm 120° Series Argon-Purged
Explore Scientific$999.999mm Focal Length 120° Apparent Field 13mm Eye Relief Argon-Purged Waterproof EMD Coatings 2" Barrel
$999.99