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Image of 20mm Orion Expanse Telescope Eyepiece
 

20mm Orion Expanse Telescope Eyepiece

With their 66-deg apparent field of view, our Expanse wide-field eyepieces will definitely turn up the Wow! factor in your deep-sky observing experiences! Imagine taking in objects like the Andromeda Galaxy, the Double Cluster, or the star clouds in Sagittarius...



 
Image of 20mm Orion LHD 80-Degree Lanthanum Ultra-Wide Eyepiece
 

20mm Orion LHD 80-Degree Lanthanum Ultra-Wide Eyepiece

With an ultra-wide 80-degree field of view and true-color lanthanum optics, the 20mm Orion LHD eyepiece is sure to impress you with exquisite views of the night sky. Like all Orion LHD eyepieces, this 20mm model features an element of lanthanum glass...



 
Image of 20mm Orion Sirius Plossl Telescope Eyepiece
 

20mm Orion Sirius Plossl Telescope Eyepiece

With a wide 50-deg apparent field, our Sirius Plossl line of eyepieces provide clear, sharp images of impressively high contrast. They're suitable all telescope types: reflector, refractor, and catadioptric. Each 4-element Sirius Plossl is multi-coated...



 
Image of 21mm Tele Vue Ethos Telescope Eyepiece
 

21mm Tele Vue Ethos Telescope Eyepiece

Maximize your spacewalk experience with the 21mm Ethos. Transform your passage through the Milky Way with the 21mm's nexus of contrast, power and field. Larger deep sky objects and rich star fields are its natural playground. Looking on-axis your field-of-vision...



 
Image of 2" 2.0x Tele Vue Powermate
 

2" 2.0x Tele Vue Powermate

These Powermates are a better choice for 2" diagonals than Barlows, since they are nearly Parfocal. They are threaded for 48mm filters and their performance is excellent with every 1.25" and 2" eyepiece we make (yes, even the 31mm Nagler Type 5!). Both...



 
Image of 22.3 lb. Counterweight for Orion HDX110 EQ-G Mount
 

22.3 lb. Counterweight for Orion HDX110 EQ-G Mount

This 22.3-pound counterweight fits the 1.25" (31.5mm) diameter counterweight shaft of the Orion HDX110 EQ-G Mount, as well as other telescope mounts with a similar-sized counterweight shaft, such as the Celestron CGE Pro. The 22.3lb Counterweight has...



 
Image of 228-263mm ID Orion PinPoint Telescope Focusing Mask
 

228-263mm ID Orion PinPoint Telescope Focusing Mask

When placed over the front of a telescope, handy Orion PinPoint Telescope Focusing Masks make it easy to achieve quick and precise focusing without guesswork. Also known as Bahtinov masks, these focus aids feature a laser-cut slot pattern that produces...



 
Image of 235mm (9.25") - 305mm (12") Telescope Heating Band
 

235mm (9.25") - 305mm (12") Telescope Heating Band

This Dew Zapper Heating Band for 9.25" to 12" telescopes is part of the larger Dew Zapper Pro 4-Channel Dew Prevention System. The required control module is sold separately. With Dew Zapper Pro you'll never again have to quit an observing or imaging...



 
Image of 235mm ID Orion Telescope Tube Rings
 

235mm ID Orion Telescope Tube Rings

These cast-aluminum rings feature quick-release, hinged clamp knobs and felt lining. They are designed for use with Orion Dovetail Mounting Plates, Orion EQ-1, EQ-2, EQ-3, or AZ-3 mounts, and many other equatorial and altazimuth telescope mounts. One...



 
Image of 2" 4.0x Tele Vue Powermate
 

2" 4.0x Tele Vue Powermate

These Powermates are a better choice for 2" diagonals than Barlows, since they are nearly Parfocal. They are threaded for 48mm filters and their performance is excellent with every 1.25" and 2" eyepiece we make (yes, even the 31mm Nagler Type 5!). Both...