Guys, thanks for all answers. I've tried that kind of style in my short movie, it was succesful there. It was a psychological drama which was in a mental hospital, so i think b&w was suiting it. But of course it was a short, maybe u r right about the market. But i saw the french movie "Zameti-13". It has an original idea and b&w looks ok. I've heard that Brad Pitt bought the rights to reshoot it.
First of all i don't like shaky camera moves, so even it's hand held sometimes, camera won't move much and i'll make it with cuts. The camera i've used was Sony Z-1, i've shot with b&w picture profile and used black stretch. I've never used 35mm adapter, but i'm not sure about it. Because filmlook is not only about depth of field but i want to test it.
My main idea was: Shooting a very low budget movie with the equipment just what i can have. And with the help of a small but excited crew and a very well written script. When shooting this way, of course i'm not planning to have landscape shots or great jib shots. My purpose is to go in a deep psychological level and really disturb and provoke feelings. When it's a low budget, it won't have much commercial expectation and it can have a chance in festivals.
But i'll try to find a better camera like any true HD and i'll keep in mind what u said about b&w. Also two years ago, a turkish director shot a movie with miniDV and then transferred to film. Actually it wasn't looking bad. I want to shoot this movie next year and we'll see what happens. If i can't, i'll shoot another short and try to get budget for a feature.