This adapter allows using some shutters on focusing helicoids with M65x1 thread. Take note that this adapter has no female thread - it has just a round bore. So, your shutter should have retaining nut to mount it.
- Bore diameter - 41.6 mm
- Male thread - SM2 (2.035″ - 40 tpi)
- Flange thickness - 5 mm
- Max diameter - 58 mm
- Weight - 16 g
Suitable shutter(s):
- Compur #1;
- Copal #1;
- Prontor #1.
The adapter is made of anodized aluminium.