Max Shutter speed
Canon 100D can shoot continuously at max speed of 3 fps
and has max shutter speed of 1/4000 sec
100D has a built-in flash, and it also has a flash shoe to mount your external flashes too.
Canon 100D features both Contrast Detection and Phase Detection autofocus (AF) systems which ensures speed and accuracy of focusing in most situations. The AF system has 9 focus points and 1 of these sensors are of Cross-type. Cross-type sensors locks focus faster and more accurate compared to single type sensors. Canon 100D also features Face detection AF
where it intelligently detects the faces in the frame and locks the focus automatically.
You can download Canon 100D's User Manual here