Where a previous poster said that the discussion should be split at 17x22", the split point may be somewhat higher - in the range of 24x36". There is at least one "35mm" DSLR right now that prints 24x36 at gallery quality, even with high-detail subjects, and I strongly suspect that this group will increase in the next 6 months to a year when Canon responds to the D3x, and Sony may introduce a 14-bit, lower noise Alpha 950, and Leica themselves may introduce a rangefinder M9 with the pixels, dynamic range, etc... to go to 24x36". I just wonder how many MF systems can survive in the tiny market above 24x36 inch prints (assuming that FF35 remains constrained at that print size by diffraction, noise, etc...). Is there room for Phase, Hasselblad and Leica in what used to be, essentially, the 4x5 film market (the D3x and its upcoming competitors are competitive with 6x9 cm film). Unlike 4x5, where any camera takes any lens, and Keith Canham can build well-regarded cameras in his garage, a MFD system requires a significant development team for lenses, software and interfacing new generations of sensors. Are there enough applications requiring 4x5 quality to support three such teams?
-Dan