Sky-Watcher Evostar 150ED DS-PRO 0.85x focal reducer/corrector

Designed for serious Astro-Imagers. Optimised for the Evostar-150ED 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.