COOLPIX cameras maintain focus on a moving subject using a contrast detection system, which is based on the principle that objects in a scene that are in focus display the highest contrast.

The system analyzes the image information of the subject obtained by the image sensor. Then, by moving the lens, the system seeks the lens position where the image contrast is highest.

Subject Tracking is particularly useful when capturing children or pets at play and ensures sharp focus and quick response to capture your best shot.