APM Riccardi reducer and flattener adjustment flange M82

APM Riccardi reducer and field flattener adjustment flange M82. Designed for focal plane tilt adjustment of the CCD camera when coupled to the APM Riccardi 0.75x large M82 focal reducer or the APM Riccardi 1x field-flattener (both models).

For the APM Riccardi 0.75x large M82 reducer and the APM Riccardi 1x field flattener (both models) we can offer an additional alignment flange to eliminate tilting. With three screws it is possible to adjust the reducer evenly to get the maximum sharpness over the whole field of view. The flange has the same M82 thread as the correctors at both sides.

Mechanical thickness (backfocus): 17.5 mm