Flatteners, Reducers & Extenders

This TeleVue 0.8x magnification multicoated auxiliary lens system reduces by 20% the focal length of the TeleVue TV-102iis and the TV-102 and other...

The Sky Rover 90 GPS is a 90mm f/6 Super ED triplet — 540mm of focal length built for wide-field deep-sky imaging. Like every refractor, it forms i...

The Sky Rover 155 GPS is the flagship of the line — a 155mm Super ED triplet at 1240mm and f/8, built for the demanding end of deep-sky imaging: pl...

The Sky Rover 155 GPS is the flagship of the GPS line — 155mm aperture, 1240mm at f/8, Super ED triplet glass with exceptional color correction and...

The Sky Rover 80 GPS is the portable imaging refractor in the GPS lineup — the one you grab when setup time matters. Eighty millimeters of Super ED...

The Sky Rover 130 GPS is already a capable imaging refractor at native focal length — 130mm of Super ED triplet glass at 910mm f/7. That's a versat...

The Sky Rover 130 GPS is a serious deep-sky imaging platform: 130mm aperture, 910mm focal length, a Super ED triplet, and a 3.7-inch focuser that g...

The Sky Rover 70 GPS is a serious little imaging system. Seventy millimeters of Super ED triplet optics delivering 420mm at f/6 and enough speed to...

This TeleVue 2" focuser adapter lets you use the #1361 0.8x reducer with the 2" focusers of TeleVue NP-101 and NP-127 refractors. It also lets you ...

Consists of three parts for eyepiece projection photography with Takahashi refractors only. The normal 1.25" Takahashi eyepiece holder is unscrewed...

Sky-Watcher Field Flattener for EvoGuide 50DX – Bring Sharpness to the Corners If you're using the Sky-Watcher EvoGuide 50DX as a wide-field astrog...

The Takahashi Extender-QE is designed specifically for use with the new Takahashi FSQ-106EDX4 refractors only. It serves a dual purpose with that s...

This dual purpose Takahashi optical system is both a 2" 1.6x Barlow and a field flattening photographic tele-extender designed for use with Takahas...

This fully-multicoated visual/photographic focal reducer for the Takahashi Mewlon Dall-Kirkham reflectors shortens each telescope's focal length an...