11-14-2010, 02:08 PM
I had a 50D before getting the 7D also. The only weakness of the 7D over 50D I can think of is the lack of ability to change focus screens if you ever need that. Of course the main difference between the two is the upgraded AF system. While it does help having more points, like any other AF system it can get confused so you still need to exercise caution when more than one point is active. With the 50D I found I ended up using the middle AF point only most of the time, but the 7D's more points means I do move that single point a lot more now. I can't say I notice a real world difference in detail between the two, but the 7D image does look better beyond ISO1600.
<a class="bbc_url" href="http://snowporing.deviantart.com/">dA</a> Canon 7D2, 7D, 5D2, 600D, 450D, 300D IR modified, 1D, EF-S 10-18, 15-85, EF 35/2, 85/1.8, 135/2, 70-300L, 100-400L, MP-E65, Zeiss 2/50, Sigma 150 macro, 120-300/2.8, Samyang 8mm fisheye, Olympus E-P1, Panasonic 20/1.7, Sony HX9V, Fuji X100.