ASKAR 203APO f/7 TRIPLET REFRACTOR Free_Shipping 25" barrel 24 mm Length

25" barrel 24 mm Length of 2" barrel 21 mm Diameter 55 mm Weight Varies for each focal length SKU BA2454200

2 TOA-645 flattener backfocus distance 73

The ToupTek ATR294M PRO Mono is a cooled astronomy camera using the Sony IMX492 back-illuminated CMOS sensor

any error on each of the two components will sooner or later result in a tracking error

ASKAR 203APO f/7 TRIPLET REFRACTOR Free_Shipping 25" barrel 24 mm LengthThe 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