John,


I did de-sat the reds a little in this shot becuase the bird's gorget was too hot, perhaps I went a bit far but on my monitor it looks good.


The MKIII (I purchased used from Adorama) just a few months ago .... it's taking some time to adjust to .... I had used the 40D exclusively for 2-3 years


The 1.3 crop factor is a big difference to me, I have to try to get a little closer for birds but for landscapes, portraits, sports or family snapshots it seems easier to frame a shot and include more in the image.


The improved weather sealing I wanted because I intend to attend some wrokshops in locations where the weather can be a big factor.


The MKIII shoots faster than the 40D in terms of frame rate and the shutter lag is less. The camera has good feel and handles well. Some of the features like extended ISO settings and more AF points are helpful. The menus and programming are significantly deeper and I have just scratched the surface.


When you get a well exposed sharp image I think MKIII pictures have a sort of depth to them that the 40D doesn't .....that's probably subjective.... overall it's a better camera.


Joel