ZWO 0.7x REDUCER FOR FF107 & FF130

The ZWO 0.7x Flattener/Reducer for FF107 and FF130 telescopes is a 3" corrector for full frame sensors. The flattener/reducer is a triplet design with one element of ED (Extra-low Dispersion) glass. The 0.7x reduction factor shortens the focal ratio of the FF107 to f/4.9 and the FF130 to f/5.4, shortening the exposure time and increasing the field of view.

When paired with this flattener/reducer, the focal length of the FF107 becomes 524mm and the FF130 becomes 700mm, transforming them into extremely capable widefield astrographs. The flattener/reducer has a backfocus requirement of 55mm, making it straightforward to connect common imaging trains.

1. Remove the reducer from its packaging.

2. Unscrew the eyepiece holder from the end of the FF107 / FF130 telescope tube.

3. Unscrew the dust cap from the front of the reducer.

4. Insert the reducer into the focuser and screw in to the rear threads on the drawtube.