44.5mm clamp to M52x1 male thread adapter

This adapter allows mounting lenses with 44.5mm rear diameter to a focusing helicoid with M52x1 thread.

The 44.5mm hole comes thought the whole adapter, and you can insert a lens as deeply as necessary to reach infinity or at least usable focus distance range.

Flat metal tension spring protects the lens body from damage by screws.

• Front side – 44.5mm clamp
• Rear side – M52x1 male thread

Machined of high quality aluminium alloy.

Suitable lenses:

• KERSHAW TYPE 250 2.8/100mm