This 0.85x Focal Reducer/Corrector for Sky-Watcher EvoStar 100 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher EvoStar 100 ED (also known as the Pro ED 100) 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.

• 0.85 Focal Reduction Rate
• Provides superb field-edge correction
• Optimized for use with Sky-Watcher EvoStar 100 ED Apochromat

• Sky-Watcher Reducer / Corrector for EvoStar 100 ED