21.1-megapixel full-frame CMOS sensor with DIGIC 4 Image Processor, a vast ISO Range of 100-6400 (expandable to ISO L: 50, H1: 12800 and H2: 25600), plus EOS technologies like Auto Lighting Optimizer and Peripheral Illumination Correction. It supports Live View shooting, Live View HD videos, and more. It can shoot up to 3.9 fps, has 9 AF points plus 6 AF assist points, a new 98% coverage viewfinder, a 3.0-inch Clear View LCD (920,000 dots/VGA) and a rugged build. Full-frame shooters rejoice.