F11? there's a bit of corner smearing on the first shot, but doesnt bother me too much. I cant remember where the focus is at because I think at that aperture, I was hyperfocal. Generally speaking, I just set it and forget it at F8 or F11 depending on light. both 7 bracketed shots with sky blending, manual HDR. On the second shot, I did a set of bracketed shots, then a separate shot in TV mode to capture the motion exactly as I wanted (this one happened to be 1/4 second, just quick trial and error on the spot does the trick). Later, I blended the sky. Sounds tough, but only 5 mins PP work.