SK09RFE82ED

S20207

Sky-Watcher

The Sky-Watcher 0.9x Focal Reducer / Flattener for Evolux 82 ED APO Refractor is a thread-on reducer/corrector that produces a flat field across the entire image while shortening exposure time by 24%. It is optimized for Evolux 82mm refractors.None 82mm, f/5.8, 477mm focal length 55mm back focus 36mm illuminated field Includes one ED element M56x1 female / M48 male threads Includes rotator/adapter with built-in cavity for 2" filters