A question for all....I've typically held ISO and Aperture constant when bracketing for HDR, and using Shutter Speed as my variable for the bracketed shots. I just bought a 6D and have been stunned by the high ISO performance. It makes me wonder if I could handhold more often to bracket by allowing ISO to be the variable, with Shutter Speed and Aperture fixed. I think I get clean shots with the 6D up to 12800 in many cases, which allows a lot of stops to bracket.
Has anyone tried HDR with ISO as the variable?