Flatterers, Reducers & Extenders

This Astro-Tech AT80EDTFF 1X field flattener is designed specifically for prime focus astrophotography with the Astro-Tech AT80EDT ED triplet apo. ...

This Astro-Tech 2" 0.8x reducer/field flattener is designed for astrophotography while using your Astro-Tech ED102ED refactor This Astro-Tech #AT10...

.85x Reduction For Your Sky-Watcher Pro 80 ED APO Refractor Helps Correct Distortion Out to the Edge of the Field Requires a 48mm T-Ring So you wan...

Explore Scientific’s 3” Field Flattener .7x Focal Reducer is a multi-faceted accessory designed to enhance your astrophotography experiences. The E...

If you are needing a faster version of your ZWO FF65APO Quad, this reducer will take your f/ratio from f/6.4 to f/4.8. ZWO has released a brand-new...

This Astro-Tech AT90FF 1X field flattener is designed specifically for prime focus astrophotography with the Astro-Tech AT90CFT or AT90EDX ED tripl...

.85x Reduction For Your Sky-Watcher Pro 120 ED APO Refractor and 150ED Refractor. Helps Correct Distortion Out to the Edge of the Field Requires a ...

A reducer has the optical property of decreasing the effective focal length of a telescope. This results in a wider-field and faster imaging time o...

If you are needing a faster version of your ZWO FF107APO or FF130APO, this reducer will get you there. ZWO has released a new 3-inch 0.7× full fram...

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...

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 EvoGuide 50ED Flattener Highlights Corrects for field curvature, allowing the EvoGuide 50ED and 50DX to be used for astrophotography T...

If you are needing a faster version of your ZWO FF80APO Quad, this reducer will take your f/ratio from f/7.5 to f/5.7. ZWO has also released a new ...

This field flattener from Explore Scientific is designed to work with refrators from f/5 to f/7. This is a field flattener for refractor-type tele...

This Questar 0.7x achromatic focal reducer gives you faster photographic speeds with both 3.5" and 7" Questars.This 172mm focal length positive ach...

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...