I still shoot a lot of film, but for editorial projects I've started to shoot some digitally. I was using the Canon 5d MarkII but was quite let down by the quality of the image, especially with their tilt/shift lenses (I'm coming from shooting 4x5 film). So, I tried the Phase/Mamiya 645df with a Phase One P45+ back. I've tried a lot of medium format options out and this is the best I've found. I like the RZ with this back, but don't like that the lens focal lengths aren't native. I liked the 645df camera and the p45+, but I have to say I'm let down by how the back renders backlighting. Why do most medium format digital backs seem to have problems with this? I shoot a lot of natural light and sometimes shoot into a window. On film, it looks great. Even with a Canon it looks great. But with the MF digital systems I've used, it looks like a mess. Why is this? Is this a common problem? Any solutions?