The 20D has some assets and some liabilities - it's got a somewhat smaller
sensor, APS size, <snip> -- Emily L. Ferguson
Per Dpreview (and all other things I've read on the 20D) site: http://www.dpreview.com/reviews/canoneos20d/page3.asp
The first and probably most significant change is an all new 8.2 megapixel CMOS sensor which has the same dimensions (albeit for half a mm) as the EOS 10D's six megapixel CMOS sensor. Canon also claims improved sensitivity thanks to new microlenses and a new on-chip 'noise elimination circuit', frame rates are up as this sensor has a 4-channel read-out (double the EOS 10D).
Greg Fraser "Things are never what they seem" - Vlad http://home.golden.net/~fraserg
