Canon EOS-1D Mark II 8.2MP Digital SLR Camera (Body Only) 8.2-megapixel CMOS sensor--3:2 aspect ratio the same as in 35mm cameras Compatible with Canon professional EF lenses (except the EF-S line) Continuous shooting 8.5 frames per second at full resolution; rugged, weather-resistant magnesium alloy Supports both CompactFlash Type I and II and Secure Digital (SD) memory cards Powered by rechargeable NiMH battery pack; connects to PCs and Macs via FireWire and USB 1.1