Man, did these guys answer!
I haven't done much shooting with this yet, but I expect image quality to be very good from anything that Canon or Nikon release, and dpreview measurebaters will be posting their tests soon enough so why bother? ![]()
Viewfinder:
Very Nice! Equal to the D200, and close enough to the 1Ds Mk II that you could go back and forth without that painful reality check when you raise the backup body to your eye.
Build Quality:
This thing is built like a tank, feeling a lot like a 5d and less like a 20d/30d. Weather seals on the cf door and battery door look ok.
Frame Rate:
The camera is really quick. I've always felt Canon cameras lagged below what they claim in terms of Continuous Shooting speeds, but I think this one is every bit of 6fps.
LCD Screen:
Incredible. Very nice for fine focus confirmation.
Live View:
If you want it, it is there. Barely discernible shutter delay, and excellent detail. Requiring MF is a bit of a pain, but I'm intrigued by trying it out. I am not a historical live view proponent, but I shoot a ton of wa w/ lenses pre focused, and I shotgun without using the viewfinder with full frame fisheye lenses and the camera held at arms length. If live view doesn't have any other negative affects, I might as well have it on in these situations.
Personally, if I owned 20d or 30d systems, they'd be on eBay right now. If I had a 5d I'd be considering it, partially to have access to this camera (higher macro magnification, faster frame rate, larger lcd, weather seals), and also to have access to the Tokina 10-17.