Max Shutter speed
Canon G1 X II can shoot continuously at max speed of
5 fps and has max shutter speed of
1/4000 sec.
Flash
G1 X MII 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 G1 X MII'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
Canon G1 X II features a Contrast Detection autofocusing system. The AF system has 31 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 G1 X II also features
Face detection AF where it intelligently detects the faces in the frame and locks the focus automatically.