I just bought a Contax 645 system and am in the market for a MFDB. I have narrowed it down to the Leaf Aptus 17 refurbished or the Phase One P21 new. I've been using Canon and Nikon 35mm digtital bodies for years along with MF film and 4x5 for my work and am trying to decide if the P21's worth $4500.00 more dollars over the Aptus 17. The majority of my work currently and for the next 6 months consist of feature editorial assignments for regional glossy's, outdoor retail ad campaign's and the occaisional architectural interior shoot. I will shoot most of the architectural interiors on 645 and 4x5 film, but want to shoot all other on digital back. For me 18mb back is enough for what I do and whatever back I purchase will become back-up for newer larger full frame back in the next 12-18 months. How doe the files from these 2 backs compare? I like the fact that the Leaf Aptus 17 has a low ISO of 25 so I can shoot fill light with my elinchrom ranger system at F8 to compensate for the Contax' poor flash sync of 1/125, but on the back end the Phase One back with its great software should take less editing than the Leaf product???
Please help with real world answers......