These were all HDR shots using 3 bracket shots for each picture.
Because of the 1D MK3's 10FPS capability, I can do it handheld, which makes it so much more fun (I probably wouldnt do it othersise).
You set the camera for # of brackets, set 10FPS speed, press and hold. The camera automatically stops when it's got all the bracket shots.
I'm continue to use this method until I get sick of the look (which may be soon).
All pictures were taken with the super sharp 24-70L at F4