I just picked up my 5DII today from our local pro shop. They only got 7 bodies in today. More next week.
Anyway, I haven't shot anything worthwhile yet. I have some personal art projects for the next few months and client work this coming week to try it out.
What I notice, and this is from looking at files in DPP, 5DII files at 100 ISO are nice, but my Leaf Aptus22 at 100 ISO almost looks cleaner. I never have liked DPP and haven't used it for years, but it was the quickest thing to look at some files.
What I can add is that my 2 year old version of Photo Mechanic (fastest culling/editing app for Canons hands-down) reads the files just fine, so no update needed there. Lightroom 2.2 should be out in the next few weeks at latest. Then I can run the Canons and Leaf through LR.
The 5DII will be a good camera, a good tool. It's not the end all be all. I mean people have been shooting with 1DsIII cameras for a year now so other than the video feature, there's not much new here (a few good user features, non image quality related). Do expect utter chaos in quantity of posts across the web from new 5DII owners. That will be the real 'noise' in all this.
I'll certainly try to do my own comparison to get a feel between Aptus22 and 5DII because the Canon is a hell of lot easier to use, quicker and same file size, just different framing.
Added: Pulling up the shadows on the 5DII is impressive, nicely clean in relative terms. I would equate it to opening shadows on my Aptus22 set at 25 to 50 ISO. I have a feeling in print these two cameras won't look any different in image quality with only frame proportions or depth of field subtleties to be all that's evident.
I just got my 5D, after having used my friend's 1DsMkIII last week.
One thing to note: LIVE VIEW ROCKS.
10x zoom in to check focus?
I can't count how many times my Leaf's resolution has been wasted on poor focusing through a crappy viewfinder. even a slight fraction off means a loss of resolution.
This 5D is going to be a perfect complement to my kit.
