Will I really be able to detect a major difference in the quality of a photograph made with these cameras? Now for a moment lets assume that all of these cameras had the same MP rating, and that I changed my posiiton from the CF to FF so that the same image would appear in the photo, could I tell a difference?
Thanks all, just learning here.
I really don't understand what you are trying to get at, particulary asking about a new camera that doesn't yet exist.
I can only say that I had 5 of the 40D's. they were wonderful cameras, and I loved them. But my 5D MK II is much better. If you do a comparison between the old 5D MK I and the 40D, the 5D MK I wins handily as well.
Assuming the cameras have the same MP does not compute. They don't and never will.
The Photographer is 90 % of the image followed by the lens. The body you use will matter in cases where better AF, faster fps, ruggedness, or low light sensitivity is needed, but in bright sun at ISO 100, the body plays a small part.