Summary: Being an experieced photographer who has won awards and exhibits for her work, I have yet to shoot a photograph with the Canon 50D of a photographic quality that I would consider submitting for exhibit. I find the quality of very poor in detail, depth of field, color, the auto focus adjusting to light and more.The two pros are a higher megapixels and increase in speed in sequential rapid shoots.Unfortuantely due to the other factors, it does me little good.
Pros: Fast Shutter Speed
Cons: AF poor adjust to light, AF poor depth of field, AF poor image quality, Auto Focus AFpoor detail, Poor In Low Light
Summary: I am surprised to see that the images on the 40D are better than the 50D. I would think logically it would be better to have the CMOS updated on the 50D, but when you compare images side by side 100% crop, the 40D wins. More Pixels doesn't mean better, and that's what the camera factories would want you to believe. The big reason I would want the 50D is for the totally improved LCD screen, which is like the D300, to see if you are getting the shot you want.
Excerpt: I have been the proud owner of a Nikon d80 for a while now and still love it. I was seduced by the idea of upgrading to the professional level d300s but had a real struggle rationalising the extra expense as an amateur user.I finally bit the bullet in January 2010 and bought the camera. It took me a little while to read through the user manual but the effort was well spent time.