2 inch diameter T 2 focal adapter; fits into all 2 inch focusers
Black anodized to minimise reflections; filter thread for 2 inch filters
Allows you to quickly attach your SLR camera to any telescope with a 2 inch focuser
The required spacing can be achieved by combining several extenders of differing lengths; you can use 1 piece; 2 pieces; 3 pieces or 4 pieces of the extension rings as you like
The extension tube has a M48x0.75 interior thread and a M48x0.75 exterior thread for elegantly solving spacing problems in astrophotography