New M39X0.75 Female Thread to M65X1 Mount Adapter for Copal #1 Shutter
Product Feature:
Female Thread - M39x0.75
Male thread - M65x1
Max. diameter - 69mm
Length - 5mm (not including the male thread)
This adapter for Copal #1 shutters or M39X0.75 thread mount to Chinese focusing helicoids with M65x1 thread.
Made of aluminium,durable