Just posting a couple of comparison pictures of the 50D vs 5D II.
Canon 50mm f/1.4, Canon Extension Tube EF25 II
5D Mk II (cropped slightly to match framing of 50D picture):
50D:
I posted these in the EF Lens forum a couple of days ago:
Canon 5D Mk II, Canon 24-105 @ f/5.6
Canon 50D, Canon 17-55 f/2.8 @ f/4
These were quick snapshots to compare high ISO. They are both hand held with no post processing. The only noise reduction is the default setting in Aperture.
Canon 5D Mk II, Canon 24-105 f/4 @ f/4, ISO 3200
Canon 50D, Canon 17-55 f/2.8 @ f/2.8, ISO 3200











