I thought about downgrading my 7D to a 50D recently. I am still evaluating the possibility and want to listen how you guys think about it. Many of you should have or had both cameras. Your suggestions are very valuable to me.
My biggest interest is bird, especially flying birds. I used to use 7D on this but later get a 1DIII. I find 1DIII to be a much better camera for flying birds and fit my 100-400 pretty well. I like 1D so much that I sold the 5D and plan to use the 1D for BIF/night/portrait and anything that fit. Now I only use 7D for some still pictures when reach is a problem. I also took it with me everyday and shoot randomly. I think for this purpose 50D may also fit.
My biggest concern on 50D is the high ISO noise. I heard a lot about the banding noise when you bump iso. When I shoot I find ISO1600 to be quite usual, sometimes I use 3200, but don't use 6400 very much. I don't know how good ISO performance can 50D be. And the AF system, how is the center focus point behaves, compare to 7D?
Thank you in advance for your advices