I usually carry two cameras with me now when i shoot, because i use prime lenses. (with wildlife, i don't have time to change lenses) I usually carry one with a 300mm and the other with a 85mm . This is the same shot from the same location, just 2 different lenses.
kind of had to clip the blacks to get the forground exposure.
As you can see the larger pixles of the 8mp 1dmkii captured more shadow detail (more pixles are not always better)