The EOS Rebel T4i features incredible image quality with an 18-megapixel CMOS (APS-C) sensor, DIGIC 5 image processor that helps capture all the action with high-speed continuous shooting of up to five frames per second (fps) and an extended ISO range of 100 - 12800 (expandable to 25600 in H mode) that gives photographers the opportunities to take the EOS Rebel T4i into more shooting situations than ever before. The camera includes a revolutionary autofocus (AF) system to help achieve fast, sharp focus and smooth HD video. The AF system includes a nine-point all cross-type sensor array, and Hybrid CMOS AF which achieves fast focus when shooting stills or video in live view mode. Much to the pleasure of aspiring student filmmakers and parents everywhere, the Rebel T4i features Canon's movie servo AF providing a quiet, continuous AF during HD video recording when using one of Canon's Stepping Motor (STM) lenses. The silent continuous autofocus when shooting HD video helps ensure the camera only captures the sounds of the scene being recorded. When combined with the camera's vari-angle touch screen 3.0-inch clear view LCD monitor II and intuitive "fingertip" controls, touch-menu and advanced still and video capabilities.