BAADER M54 SPACER RINGS AM5 5 arc seconds PEC Yes

5 arc seconds PEC Yes

It has an optical thickness of 17

For planets that cover a small area of the sensor

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

25" eyepiece snout with safety indent slot directly into your diagonal or focuser

BAADER M54 SPACER RINGS AM5 5 arc seconds PEC YesThe 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