ZWO 0.75X Full Frame Reducer for FF65 APO Refractor - F65RE

The ZWO FF65 APO 0.75× Full Frame Reducer is designed specifically for the FF65 APO refractor.  It has a reduction factor of 0.75X, which shortens the effective focal ratio to f/4.8 for a wider field of view and shorter image acquisition times.  The reducer has a four-element optical design and will work with full frame cameras.

The back focus distance is the standard 55mm. The reducer comes with an M54 and M48 adapter as well as a built-in M48x0.75 2” filter thread.

Connection steps

1. Prepare the FF65APO telescope tube and the focal reducer.
2. Unscrew the eyepiece holder at the end of the FF65APO telescope tube.
3. Unscrew the end cap of the 0.75X reducer.
4. Insert the reducer into the focuser and tighten.