Hi

I understand that the Prontor Pro 01 shutter is a '1' shutter that has been made so that it receives lenses that would normally go in a Copal '0' sized shutter.

So if the Prontor Pro 01 is a Prontor 1 shutter with a step down inside, can this be removed and the shutter used as a regular '1' sized shutter? Have any of you done this - if it is possible, is it easy or not a DIY task?