High Image Quality 24.2 megapixels APS-C sized CMOS sensor.. DIGIC X Image Processor with a native ISO range of 100-32000 expandable to 51200(1). Dual Pixel CMOS AF II covering approximately 100% width and height(2) with up to 651 zones down to EV -4.. High speed shooting 15fps mechanical(3,4), 23fps electronic shutter(4,5) and RAW Burst Mode with second preshooting. Subject tracking inherited from the R3 with people, animal(6), and vehicle detection