Instructions for attaching M92 Reducer or Flattener to Altair Focuser:

• Loosen (but do not remove) the 2.0mm Hex Grub Screws from the rear of the focuser.
• Unscrew the rear 2″ push-fit adaptor assembly to reveal the M92 inner thread on the rear of the focuser.
• The reducer can then be screwed onto the focuser for a stable fit.
• Most reducers will have a rear adaptor which gives 55mm sensor to flange spacing, so be sure to look up your camera sensor to flange distance to work out what adaptors you need.