Reducers and Correctors

0.85x Focal Reducer/Corrector for Sky-Watcher Evostar 80 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 80 ED ...

0.85x Focal Reducer/Corrector for Sky-Watcher Evostar 120 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 120 E...

0.85x Focal Reducer/Corrector for Sky-Watcher Evostar 100 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 100 E...

Delivers stunning wide-field views with pinpoint stars to the edge of the field. Magnification remains unaltered.

Allows Evostar 80 Reducer/Corrector to be mounted to the Evostar 72 ED

34mm fully illuminated field but can handle full frame as well 95mm back-focus (55mm when back focus spacer and M48 ring installed) Drops f/ratio ...

34mm fully illuminated field, compatible with both APS-C and full frame sensors 89mm back-focus (55mm when back focus spacer and M48 ring installe...

36mm fully illuminated field, compatible with both APS-C and full frame sensors 90mm back-focus (55mm when back focus spacer and M48 ring installe...

Corrects for field curvature, allowing the Evoguide 50ED and 50DX to be used for astrophotography Thread on metal caps T-thread connection or 1.25...

Compatible with both APS-C and full frame sensors, APS-C (crop sensors) and smaller recommended 55mm back focus Drops f/ratio from native f/5.8 (4...

Allows Evostar 0.85x Reducer/Flatteners to easily adapt to your Evostar ED telescope Provides a secure threaded connection Allows you to rotate yo...

0.9x thread-on reducer/corrector produces a flat field across the entire image while shortening exposure time by 24%. Optimized for Evolux 62mm ref...

0.9x thread-on reducer/corrector produces a flat field across the entire image while shortening exposure time by 24%. Optimized for Evolux 82mm ref...