BAADER M54 SPACER RINGS AM5 5 ångström bandwidths will reveal

5 ångström bandwidths will reveal better surface contrast as well as great prominences

Optical diameter

25″ W x 39″ D

The Askar 130PHQ is a professional apochromatic flatfield Petzval quadruplet with a focal ratio of f/7

BAADER M54 SPACER RINGS AM5 5 ångström bandwidths will revealThe Baader M54 metal spacer rings are useful for fine tuning the precise backfocus distance as required by correctors, as well as preventing binding between two M54 threaded parts. The spacer rings are anodized for durability and colour coded for easy identification. Available in 0. 3mm (black), 0. 5mm (red) and 1mm (gold) sizes. Specifications Optical length 0. 3, 0. 5 & 1 mm Material Anodized aluminium Weight 2 g SKU BA2457921 (0. 3 mm), BA2457922