The Baader M68 metal spacer rings are useful for fine-tuning the precise backfocus distance as required by correctors, as well as preventing binding between two M68 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.
||0.3, 0.5 & 1 mm
|SKU||BA2458255 (0.3 mm), BA2458256 (0.5 mm), BA2458257 (1 mm)|