Reducer Lens .7x - EdgeHD 1100The EdgeHD . 7x Focal Reducer Lens makes your EdgeHD 1100 one full F Stop faster than f 10, reducing your exposure time by half to capture the same brightness of object 5 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