SkyWatcher 72ED Flattener 0.85x Focal Reducer
Good news for the passionate astrophotographers! SkyWatcher 72ED Flattener 0.85x Focal Reducer is well designed to be utilized specifically for SkyWatcher Evostar-72ED PRO. This high-end reducer has constructively reduced the focal length by a factor of 0.85x, which in turn decreases the focal ratio from f/5.8 to f/4.93. Thus, edge-field correction is significantly enhanced for a perfect picture. A Sky-Watcher DSLR-M48 T-ring is required in order to attach this accessory to your DSLR camera.