Quote Originally Posted by Jaimecbr900
How can you tell?

BTW, I read an article last night that said that the new 30D has an "improved" shutter that is rated to last 100k.
How is your numbering set up on the XT? is it 100-xxxx or something else?

Yeah the 20D and 30D are both 100k's, which is why I want to upgrade.