==Resolution==The Canon EOS 20D has several resolution settings:* Large/Fine (3504 x 2336 JPEG Fine)* Large/Normal (3504 x 2336 JPEG Normal)* Medium/Fine (2544 x 1696 JPEG Fine)* Medium/Normal (2544 x 1696 JPEG Normal)* Small/Fine - 1728 x 1152 JPEG Fine* Small/Normal (1728 x 1152 JPEG Normal)* RAW + Large/Fine (3504 RAW + 3504 JPEG Fine)* RAW + Large/Normal (3504 RAW + 3504 JPEG Normal)* RAW + Medium/Fine (3504 RAW + 2544 JPEG Fine)* RAW + Medium / Normal (3504 RAW + 2544 JPEG Normal)* RAW + Small/Fine (3504 RAW + 1152 JPEG Fine)* RAW + Small/Normal - (3504 RAW + 1152 JPEG Normal)* RAW (3504 x 2336 RAW)==Features==The 20D is the first Canon prosumer camera to use the EF-S lens mount; the first Canon EOS camera to use the mount was the 300D (the Digital Rebel in North America).