Hi David,
You have some lovely landscape shots there. I'm using the Nikkor 14-24 on the 5D, although, to be precise, I haven't done much with it yet, other than take a few test shots to make sure it's working as it's supposed to, which I believe it does.
I was initially confused by some erratic behaviour of autofocus in AV mode, so I've got the impression that it might be better to use the camera in manual mode and autobracket exposures. However, I now believe this erratic behaviour is simply due to the fact that autobracketing of exposures in AV mode is not a feature which is supported with this adapter. If I want to autobracket exposures, it seems I have to get a ball-park meter reading in AV mode, then turn the dial to manual mode and set the AEB parameters. If AEB is set with camera in AV mode, I get a ridiculously overexposed reading, like 1/3rd sec instead of a correct 160th.
Are you able to get an accurate exposure reading in AV mode with AEB set?
Cheers!