58mm clamp to M65x1 male thread adapter for helicoids

Description

58mm clamp to M65x1 male thread adapter for helicoids
Front side - 58mm inner diameter
Rear side - M65x1 male thread
Distance between flanges - 10 mm
Weight - 34 g
This adapter allows using projection lenses that have 58 mm barrel diameter on Chinese focusing helicoids with M65x1 screw thread. Such setup is great for portrait and macro shots.
The adapter is secured by 3 set screw (installed) with an allen key (included).
It has intermediate flat metal spring that prevents damage of the lens barrel by set screws.
Made of light alloy (aluminium 6061 or D16T), anodized to black color and laser engraved.