EOS 50D of Cannon is a camera numerical compact portray reflex and professional. EOS 50D is part of the family of the Cannon EOS which inserts an optic viewfinder and a screen LCD protected from 3 thumbs providing a resolution of 920000 pixel. It's equipped with a CMOS sensor and gives a resolution of 15,5 megapixel. It deals with cards compact flash of type I and cards compact flash of type II.This honest model the new processor DIGIC 4 of Cannon for a treatment of pictures on 14 bits and gives a cadenza of 6,3 pictures / s for a shot continue it. Finally, the apparatus allows a visualization on a screen HD.