67mm clamp to M65x1 male thread adapter (for Buhl f/2.5 7-inch lens)

• Front side - 67mm inner diameter
• Rear side - M65x1 male thread
• Weight - 85 g

This adapter allows using projection lenses that have 67mm barrel diameter (like for Buhl f/2.5 7-inch lens) on Chinese focusing helicoids with M65x1 screw thread. Such setup is great for portrait and macro shots.

The adapter is secured by 3 of M5 screws. Intermediate flat spring prevents a lens barrel damage.

Made of anodized light alloy.