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Home Astro-Imaging Focal Reducers & Flatteners SkyWatcher .85x Focal Reducer for Evostar 150ED DS-PRO
Designed for serious Astro-Imagers and optimised for the SkyWatcher 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 Skywatcher's M48 Canon or Nikon T-ring adaptors (product codes 20237 & 20238).
With modern large chips on digital SLR cameras used with fast apochromats like the Evostar DS-PRO range fields of view are extremely wide, these reducer/correctors will provide the best possible corrections.