Max Shutter speed
Sony A6000 can shoot continuously at max speed of
11 fps and has max shutter speed of
1/4000 sec.
Flash
A6000 has a built-in flash, and it also has a flash shoe to mount your external flashes too.
One neat feature that we like about A6000's built-in flash has is that the flash head can be tilted upwards manually using your finger, which can be used to bounce the flash light and create a more pleasing lighting on your subject. It is not a very strong flash so the ceiling/wall or the surface you use for bouncing must be relatively close to the camera.
Focusing
Sony A6000 features both Contrast Detection and Phase Detection autofocus (AF) systems which ensures speed and accuracy of focusing in most situations. The AF system has 179 points to choose from. Sony A6000 also features
Face detection AF where it intelligently detects the faces in the frame and locks the focus automatically.