ASKAR 203APO f/7 TRIPLET REFRACTOR Free_Shipping Azimuth fine adjustment range

Azimuth fine adjustment range

The ZWO FF65 is a professional apochromatic flatfield Petzval quintuplet with a focal ratio of f/6

2 x M4 locking screws Inner diameter / clear aperture 50

45 mm diagonal Quantum efficiency >80% Read noise 0

M68 BA2459118 - for cameras with male M68 x 1 threads

ASKAR 203APO f/7 TRIPLET REFRACTOR Free_Shipping Azimuth fine adjustment rangeThe Askar 203APO is an apochromatic air spaced triplet refractor that offers high performance for a low price compared to other large 8" triplets on the market. The objective lens features an element of extra low dispersion glass (ED) that minimizes chromatic aberration. The Askar 203APO has a 20% larger effective aperture area than the 185APO, giving greater light gathering power, resolution, brightness and contrast. Askar will soon release a