Skywatcher Evostar 100ED DS 0.85X Reducer/Corrector
Skywatcher Pro 100 ED Refractor 0.85X Reducer/Corrector
This Sky-Watcher 0.85x Focal Reducer/Corrector for the Pro
100ED APO (Evostar 100ED DS) telescope is designed for those who wish to do serious astro-imaging. Optimized for the Sky-Watcher PRO 80 ED APO refractor, this superb quality accessory effectively reduces the telescope’s focal length by a factor of 0.85x and provides much improved field-edge correction. Use in conjunction with Sky-watcher’s M48 Sony, Canon or Nikon T-ring adaptors.