I can't answer your question but I had a G1 with three really nice lenses. That 45mm was killer - it was 45mm right? I think I had a 90 & 28.
Really nice camera but dealing with film - oy vey.
When all the film cameras I had lusted after as a youth started getting really cheap I bought them. Leica CL, Contax, Bessa etc etc Must have shot five rolls of film tops and said "this is lame" what with the processing and scanning etc etc
Digital is the only way for me now. Shame I sold all those Leica M & thread lenses though as I would have bought a G1.
Les