Sky-Watcher .85X Reducer/Corrector for Evostar 120EDX & ProED - S20202

The 0.85x Focal Reducer/Corrector for the Sky-Watcher Evostar 120 is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 120 ED APO, this superb quality accessory effectively reduces the telescope’s focal length by a factor of 0.85x and provides much improved field-edge correction. Features: 55mm back focus M48 threads (not standard T-thread) The S20202 Reducer Corrector is compatible with the Evostar 120 EDX & Evostar 120 ProED