64mm clamp to 67mm clamp ring for Bolex Moller 16/32/1.5x

This clamp is purposed to secure a Bolex Moller 16/32/1.5x focus ring at infinity focus.

To use it, you should remove original focus ring from the lens, and install this clamp instead of it.

One row of set screws will hold the body, and another row of set screws will hold the focusing mechanism, preventing accidental focus change therefore.