Reduce exposure times and gain a wider field of view with the Sky-Watcher 0.85x focal reducer.
Simply screw this accessory onto the back of your Sky-Watcher or Orion 100mm f/9 ED refractor to convert it from 900mm to 765mm (f/9 to f/7.6).
Requires an M48 wide T-ring (sold separately).
Two year limited warranty.
Please note: standard T-rings will not mate. If you're not sure what you have, please contact us; we'd be happy to assist you.
M48 wide T-rings for Canon, Nikon and Sony cameras can be found on our webstore.