If one predominantly uses wide angle lenses most especially with tilt and shift cameras, one does have color cast problems. I have a couple of Phase One backs and use C1 Pro. Capture One Pro has a function called LCC - lens cast calibration which eliminates color cast completely. How will Lightroom deal with this issue for MFDB in particular? If Adobe cares about the Phase One back community, they are going to have to have a similar utility.