\"The 50D\'s higher resolution allows you to see detail at f/16 that you can\'t see on a 40D file shot at f/5.6. Yes, I know, you can see the loss of sharpness as you hit f/16 but regardless, even at this aperture the higher resolution of the 50D carries the day.\"
Thanks for that - it\'s a great test which illustrates the point perfectly. The 40D file at f5.6 is clearly sharper than the 50D file at f16 BUT RESOLVES LESS. For instance, on the 50D f16 file you can see the even spacing between all of the strips, whereas on the 40D f5.6 file the spacing is often incorrectly shown as uneven. With appropriate edge sharpening the 50D shot at f16 will produce a more accurate picture, in terms of detail, than the 40D shot at f5.6 or f8. Sharpness is not the goal, as that can be added later if required. Accurate resolution of pictorial information is the goal. This all reminds me of the M8 v 5D debate. High contrast between pixels is seductive, but it is not the same thing as resolution of detail.
