ASKAR 0.7x FLATTENER AND REDUCER FOR FRA400 & FRA500 BF25-SW The Geoptik G-REX Maxi dual

The Geoptik G-REX Maxi dual dovetail saddle is ideal for very large and heavy telescopes

elongation and stress

as the free aperture is smaller than the sensor diagonal of 43

The Geoptik Counterweight for 8" SCT allows you to finely balance your fork-mounted Schmidt-Cassegrain optical tube assembly

ASKAR 0.7x FLATTENER AND REDUCER FOR FRA400 & FRA500 BF25-SW The Geoptik G-REX Maxi dualThe field flattener & reducer for the ASKAR FRA 400 & FRA 500 is a dedicated corrector with a reducing power of 0. 7X. It shortens the focal length from 400mm to 280mm and the focal ratio from f 5. 6 to f 3. 9 halving the exposure time. The working distance between the flattener and the sensor is 55mm. The flattener reducer can be connected to the focuser of the Askar FRA 400 & FRA 500 using the M68 x 1 male thread, on the camera side there is the