Photography - Camera Spec

My Canon 400D camera specification

EOS 400D Body /
Kit II (with EF-S 17-85mm f/4-5.6 IS USM lens). Canon camera spec here.

EOS - electro-optical system
EF - electrofocus
IS - image stabilization
USM - ultrasonic motor system ( USM definition )

Kit II lens spec here.

Good beginning article on Canon EOS cameras.