Description
Shutter Lens Retaining Ring For Large Format Camera Lens One pcs brand new lens retaining ring for Copal, Compur, Prontor #1, allows to mount a lens on the lens board, made of aluminum with high precision machining and black finished. Size: Inner ring thread diameter: 38.4mm Outer ring outer diameter: 46.4mm We have Copal #0, 1, 3, 3S retaining ring available, please check out my eBay store.