The 0.7x Edge HD Reducer Lens from Celestron is a compact telescope accessory designed to reducing exposure time of your astrophotographs by half to capture the same level of brightness by making your EdgeHD 1100 one full f-stop faster. This accessory telescope eyepiece threads directly to 3.25" threads of EdgeHD, reducing mechanical vignetting and allowing for use with full-frame sensor cameras and off-axis guiders, as well as your existing Edge HD T-adapters .
This reducer lens features a custom 5-element optical design engineered to maintain the flat-field performance the EdgeHD telescope system. Unlike generic reducers, this premium reducer provides substantial back focus to accommodate an assortment of imaging accessories.