Reducer adapted to the Sky-Watcher 80ED and Celestron 80ED refractors. It is used to reduce the focal length to 0.85x, it improves the field correction.
By using the ring M48x0.75 with a Canon or Nikon mount, you can connect the gear unit to the gear reducer.
• fold: 0.85x
• purpose: Celestron 80ED, Sky-Watcher 80/600 APO ED