BAADER M48 SPACER RINGS Optical-Thickness:0.5mm The Baader Wide-T-Ring allows the

The Baader Wide-T-Ring allows the connection of Sony E/NEX mount to the M48 thread and T2 (M42) through 2 separate internal rings

but due to the adaptation of the heating plate

Unlike cheaper collimators

Rack & pinion dual speed (10:1) 4

Included thumbscrews for an easy lock in front of telescopes with external tube diameter from 217mm to 279mm

BAADER M48 SPACER RINGS Optical-Thickness:0.5mm The Baader Wide-T-Ring allows theThe Baader M48 metal spacer rings are useful for fine tuning the precise backfocus distance as required by correctors, as well as preventing binding between two M48 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 BA2457916 (0. 3 mm), BA2457917