BAADER M54 SPACER RINGS AM5 Optical diameter

Optical diameter

If this is the case

5 arc seconds PEC Yes

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

The new Baader CMOS-optimized O-III 4nm / 6

BAADER M54 SPACER RINGS AM5 Optical diameterThe 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