Can anyone use a Kodak Portra 3+ diopter in Series VI size? The inside of the case has a handy conversion table (see the photograph). I do not need it because when I want to photograph a close item, I can use my Summicron-DR lens.
I had one of those with a push-on mount that fit my Pony 135 back in 1972. Remarkable what a little diopter and a tape measure can do for a camera as basic as that one...
Just kidding! They managed to lose my item, so I'm back in the market for a 3+. Would you mind sending me your PayPal address by PM? I don't have the posts yet.