I am reading lots of comments about the various 22 and 45mp backs, which I believe is due to their MF "full frame" sizes. The Phase One P30 and P30+ are a bit cropped. Also there is an AA filter, I think perhaps the others do not use one?
At any rate, I would like to hear comments from some of the experienced photogs here regarding the pluses and minuses of these backs, and opinions vs. the 22 and 45mp's.
I have started to use the Contax 645 with the P30+, and clearly still have much to learn, so I am not one to be giving advice.