Celestron’s new EdgeHD reducers features a custom 4 element optical design engineered to maintain the flat-field performance of our award winning EdgeHD optical system. Unlike generic reducers, our premium reducers provide substantial back focus to accommodate an assortment of imaging accessories.
The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 800 one full f-stop faster than f/10, doubling the equivalent exposure at f/10
4-element lens design
Maintains similar flat-field performance as native EdgeHD optical design
Increases field of view by 43% (double by area) to better capture wide field images
Optimized for APS-C sized sensors, including most DSLR cameras and Nightscape CCD cameras
Provides generous 105mm back focus to accomodate additional accessories and a wide variety of cameras