Personally, I feel that my 50D is better, but I have nothing to back that up with. It may be perception, or it may be real, but I feel more "confident" with the 50D on fast moving stuff than I do the 5D MKII.
BBD -- it could be shutter lag. i've never used the 5d II but i've owned the 5d and i now own the 1ds mark III. in rally fast shooting situations the FF cameras seem just a hair less responsive.
ed rader





