M45x1 female to M40x0.75 male thread adapter for #1 shutters

• Front side - M45x1 female thread
• Rear side - M40x0.75 male thread
• Weight - 9 g

This adapter allows using lenses with M45x1 mount on shutters with M40x0.75 front thread.

Suitable shutter(s):

• Compur #1
• Copal #1
• Prontor #1