TechVerveLA: Thanks DPReview for having such comprehensive reviews over the years!
My current gear is Canon, and I have been waiting for what seems like eons for the Mk III. However, the 36mp sensor on the D800 is enough to make me think, however fleetingly, of switching to Nikon. For landscape and headshots, this camera could prove to be superior to the more expensive Canon. I don't think I could go back to the Mk II, no matter how low its price: given that it has been 3 years, I'm hoping Canon has drastically improved autofocus for the Mk III. If so, I will probably buy it. For anyone interested, I posted some thoughts on the Mk III at my blog:
I gotta say, people put way to much into sensor resolution. Image quality is so much more than that, your lenses, sensor size. I still think the 21 mp of my 5d mark ii is overkill. The most important upgrades in this mk III is the autofocus speed, frame rate and video features. The d800 can't compete in image quality to the mk iii as they are cramming so many pixels into the same sized sensor. get a medium format if sensor resolution is so important to you.
I can't believe canon went backwards with the wireless transmitter. anyone that used the transmitters on the 5d or 1d mk II (or IIn) know how horrible it was to have to connect a cable from the camera to the transmitter. Canon made a huge stride with the 1d mk III/IV and 5d mark II allowing the transmitter to connect directly to the camera and making the transmitter into a vertical grip on the 5d mk II. Why change the design from the mark II? boo canon. boo.
edit: I should add what a waste it is to have gigabit ethernet as a feature when it will be completely bottle necked by usb 2.0
Mssimo: No USB 3.0? Would be nice to use with new XQD card.
to shaocaholica: I am a professional, in fact I shoot for the new york times so I am surprised by your comment. Every single professional I know uses card readers so why by my comment would you assume I am not?
to petka: although I am a newpaper photographer I do have studio experience and have shot tethered myself. I just don't see usb 3 as an important upgrade, even shooting raw with a 1ds mk iii the photos pop up almost instantly over usb 2.0.
There were some good comments made about shooting tethered and I suppose usb 3 could help there but I would personally use the ethernet connection to shoot tethered but usb 2.0 would also be more than enough for speed.
In the end a card reader is many times faster than using the camera, I would rather put wear and tear on a card reader then a 6000 dollar camera, and there is battery life to think about as well.
professionals don't plug their cameras into their computers they use dedicated readers.