1x retaining ring for Large Format lenses (pick copal #3 or copal #3S size)

(made of aluminum, anodized black)

Note: listing is for 1x copal #3 or #3S size retaining ring.  Please do message me of your choice of copal size. Discounted price is offered for multiple qty purchase. 

The copal #3S size is 1mm smaller (inner screw thread diameter, roughly 60.3mm vs 61.3mm) than copal #3. Some Fujinon lenses use this copal #3S size shutter.

Note: the lens spanner wrench in the pictures is for demo only, it's not included in this listing. But I do have it available for sale.