The 20D can hit 5 frames per second (fps) in burst mode while the Rebel can do only 3 fps. I did not compare the buffer size between the two.
Much of the 20D's technology was moved down to the Rebel which makes it very attractive. In addition it has that 10meg sensor although it is possible that it's a bit noisier than the 20D.
That, IMO, is the trade off. Burst speed vs megapixels. Right now, I would choose the speed. You'll have to decide which is important to you.
I think the ISO and shutter speed differences are probably not very important. Burst speed is if you do any action shooting.
I am slightly past the level of an entery level dSLR user and I am looking to up grade from my Canon Digital Rebel (300D), which I have lenses for. I have a budget of around $1000 and have narrowed my choices down to the new Canon Digital Rebel XTi and the Canon EOS 20D. I have done a side by side comparison between the two cameras and the primary differences that I have found are as follows:
The XTi has a ISO 1600 and the 20D jumps to ISO 3200
The XTi has a shutter speed of 1/4000 of a second an dthe 20D jumps to 1/8000
The XTi has a 10.1 megapixel sensor and the 20D has a 8.2 megapixel sensor
I guess I am looking for an experienced shooter to give me an idea which camera would be better. I can pick up the XTi for $799 without a lense locally and I can get the 20D for $977 over the interent. Does anybody have some solid advice on what camera I should lean towards?
Thank you for your time.