So I have been looking for a Cambo lens board for a copal 3 lens, and cant seem to find one. I do however find a number of combo boards drills with 62mm holes. What shutter would need a 62mm hole? A Copal 3 should be 65 and a copal 2 should be roughly 42mm correct?
Also, how difficullt would it be to file out a 62mm metal board the extra 3mm to fit the copal 3 lens. I have done it with wood boards, but never with metal boards. If I cant find a copal 3 board Im tempted to try filing down a 62mm board, but don't want to ruin it.
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