Zip Box Adapter Rings (49, 52, 55, 58, 62, 67, 72, 77mm) adapts lenses with threaded front rings sizes 49, 52, 55, 58, 62, 67, 72, and 77mm to the Zip Box 4x4 (80-85mm) and the Zip Box 4x5.65 (80-85). All adapter ring sizes are included with the kit!

It is important to note that many lenses with a threaded front of 77mm can work natively in the Zip Box 4x4 (80-85mm) and the Zip Box 4x5.65 (80-85) because there exterior diamter is approximately 85mm when accounting for the lens hood bayonet, etc. Please check the list of compatible lenses on the Zip Box 4x4 (80-85mm) and Zip Box 4x5.65 (80-85) pages.

Specifications:
Weight: 94 g (0.2 lbs)
Individual ring weights:
49mm     16g
52mm     14g
55mm     14g
58mm     14g
62mm     12g
67mm     10g
72mm     8g
77mm     6g