Cheap Canon EOS-50D 15.1MP Digital SLR Camera With EF-S 17-85mm f/4-5.6 Image Stabilized USM SLR Lens

I went for the 50D over the Rebel series because it handles low light and high speed photography better. I can set the ISO to 3200 rather than 1600, and the shutter speed goes to 1/8000 second. What I want to know is how big a drop in print quality will result from the ISO 3200 setting. I'll be testing the shutter speed function at a local racetrack on July 3rd. The cars reach speeds of 180 MPH at the end of the straightaway. 1/8000 should freeze the action. Of course I'll slow it down a little too, for background blur. The 50D is fun to play with, but it is a bit big and heavy.Get more detail about Canon EOS-50D 15.1MP Digital SLR Camera With EF-S 17-85mm f/4-5.6 Image Stabilized USM SLR Lens.