32mm Lens Thread

[Howard Barron]

I recently purchased an enlarger lens with a 32mm thread. It has no retainer nut. Though I own a Zone VI 5x7 enlarger, I also use an Omega C760 for medium format and the lens board has a 39mm thread. Does anyone know where I can obtain a 32mm retainer nut or an adapter to step-up 32mm to 39mm for my C760. Surely this is not a unique problem amongst darkroomers. Thanks.

[Howard Barron]

I managed to find a 32.5mm retainer ring at Calumet. They call it a Copal 0 retainer ring. I now have a source. Thanks anyway.