wolves3012
Veteran
I have several of these (I-22 and I-50) and mine do. I bought one specifically to use on my IIIC and it has no focus issues. Part of the reason, I suspect, is that at only f/3.5 there's not enough error to be a problem. As ever, with FSU lenses, YMMV! Be careful with the Industar 10, however, these often "park", inconveniently, across the VF or RF windows on a Leica - some work, some don't.Does that lens focus accurately on a Leica ii or iii series, do you know?