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.
Overview:
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
