Celestron Reducer Lens .7x for EdgeHD 925

Celestron’s new EdgeHD reducers feature 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. EdgeHD reducers offer high index optical elements, including extra low dispersion, exotic Lanthanum elements, which provide high contrast viewing while minimizing chromatic aberration. All air to glass lens surfaces feature multiple layers of coating for maximum light transmission and color correction and contain blacken edges to minimize internal reflection and maximize image contrast. Large diameter lens elements, up to 60 mm clear aperture, ensure that the optimized image circle remains at a generous 42 mm for use with large CCD sensors.

• The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 9.25″one full F-Stop faster than f/10, reducing your exposure time by half to capture the same brightness of object
• 4-element lens design
• Maintains similar flat-field performance as native EdgeHD optical design
• Increases field of view by 43% to better capture wide field images
• Threads directly onto the 3.25″ threads of the EdgeHD which reduces mechanical vignetting and allows for use with larger (full frame) sensors and Off-Axis Guiders
• Maintains the identical back focus when used at f/10 and provides generous back focus to accommodate additional accessories and wide variety of cameras
• Allows use of existing EdgeHD T-Adapters with or without the Reducer Lens