Hi, I'm looking for a 72mm retaining ring for a recently acquired 240mm enlarging lens.
Anyone have a spare they are willing to part with or provide any leads on suppliers who sell these?
Thanks.
SK Grimes does retaining rings, if it's something they have as stock the price may not be too dear.
They can custom machine one too, but they would need accurate specs on the thread (or send them the lens). http://www.skgrimes.com/products/mounting-flanges