Automatic AF point selection is a function of the autofocus system. This system uses several focusing points within the frame, onto which it can focus. When this function is activated, the camera itself analyzes the entire scene and decides which of the available focusing points to use for focusing. It usually tries to focus on the nearest object or on the element with the highest contrast. Modern cameras often combine this function with more advanced technologies, such as face or eye detection, which increases the likelihood that the device will correctly identify the main subject. This way, the user does not have to manually select a specific point and can concentrate on the composition. The camera can select one point or an entire group of points for focusing, which cover the captured object. An alternative is manual selection, where the photographer himself chooses the exact point on which to focus.