Max Shutter speed
Olympus E-520 can shoot continuously at max speed of 4 fps
and has max shutter speed of 1/4000 sec
E-520 has a built-in flash, and it also has a flash shoe to mount your external flashes too.
Olympus E-520 features both Contrast Detection and Phase Detection autofocus (AF) systems which ensures speed and accuracy of focusing in most situations. The AF system has 3 points to choose from. Olympus E-520 also features Face detection AF
where it intelligently detects the faces in the frame and locks the focus automatically.