Hello !
Just read through the Mk III impressions of Michael. Certainly a good camera. As a owner of the 1D MKII I think this is a impressive feature list and many improvements which make this camera more useable.
What I struggle with is the often smearing of fine detail (now with my 5D), specially with landscape shots. In some situations it got so bad, that the picture were almost unusable. I myself see this partly as an digital thing which I have to live with. But as I got a phone call from the "boss" of my stock agency a week ago who also said that this is sometimes a drawback for picture sales (curse the art directors for viewing pictures at 100 % - but this is a fact of live), I started to rethink my approach not to think so much about this digital look of the files.
If you look at the crop in Michaels article (cody-detail.jpg), I think you will know what I mean (ok thats at 1250 ISO) but please take a look at this example on my website:
http://www.christianhandl.com/Unterebene1/smearing.htm to get an impression what can happen when imperfect light, heavy image manipulation (DXO 4.1) and the Canon 5D with the 24-70 come together (picture was made mirror prerealease, carbon tripod, 100iso, ...)
So do I have a faulty camera, wrong workflow (I doubt that, as I used a lot of different raw converters and all showed this smearing with the "right" file) or anything else ?
This is in no way a bashing of Canon, but I do have problems with a lot of files and want to improve them, if possible without buying a MFDB.
Christian