I am (very) slowly building up a Contax 645 system (for non-professional use, at least initially), and am wondering about the 35 vs 45 issue. I would like to do dusk-HDR-type architecture shots with it (going easy on the HDR...), and will likely need to stitch with either lens (?), as I expect to have to start with a Kodak DCS 645 Pro back, or similar, due to cost, so does it really make much of a difference? I have read that the 35 has more mojo, but then it is also about twice as expensive, so given the crop issue, I thought that maybe I could save a bit and go with the 45.
I guess the DCS Pro for dusk shots might also be a problem, due to the lack of long exposure time ability?
Does anyone have some experience to share?