With Canon's Hybrid CMOS AF System and Movie Servo AF, the camera provides continuous AF for focus tracking of moving subjects by helping to reduce the camera's need to "hunt", resulting in a quick and smooth continuous AF.

ENGADGET: Canon unveils EOS T5i and Rebel SL1, the world's smallest DSLR (hands-on)

The camera's subject tracking of moving objects in three dimensions, with full time servo AF (AF-F), ensures focus of moving objects throughout filming.

ENGADGET: Nikon reveals D5200 SLR with D7000-taunting specs: 24MP sensor, 39-point AF, wireless port (hands-on)