liza wrote in post #4161609
The overall image quality is much better. I use a 20D as a second camera during lifestyle portrait sessions and the difference is somewhat akin to comparing consumer glass to L glass.
Are you seeing this kind of qualitative difference after processing the raw images or are you referring to the output generated by the camera?
My experience with the 40D is that its in-camera image processing is so good that it's difficult to do as well by postprocessing the raw images. This seems especially true of images taken with highlight tone priority enabled -- even DPP doesn't generate images that have as good a balance of noise control and highlight preservation as the camera does.
The 40D is a particularly impressive camera in that respect.
EDIT: the above may, of course, say more about my postprocessing skills, or lack thereof, than it does about the camera! But I like to think that it's the camera that's impressive more than me that's unimpressive. 