88.5mm clamp to M65x1 male thread adapter for helicoids

• Front side - 88.5mm inner diameter
• Rear side - M65x1 male thread
• Weight - 100 g

This adapter allows using projection lenses that have about 88.5 mm barrel diameter (some Buhl lenses, for example) on Chinese focusing helicoids with M65x1 screw thread. Such setup is great for portrait and macro shots.

The adapter is secured by 3 screws.

Machined from anodized light alloy.