0.85x Focal Reducer/Corrector for Evostar-80ED DS-PRO

Designed for serious Astro-Imagers. Optimised for the Evostar-80ED PRO, 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 Canon or Nikon T-ring adaptors see recommend accessories.