Thanks Beardy! As for comparing the 5D MK I vs III, I can't say their "color" is different. I think the mkIII has some slight different metering, but white balance seems the same. I'm starting to work more with Nikons at work (the shooters there are Nikon folks). All things being equal with exposure, I think Nikons have a green/yellow cast in color balance vs Canon's red/purple). I gotta say I prefer Canon's defaults/ interface!