iA mode activates six detection and correction functions – MEGA O.I.S. (Optical Image Stabilizer) to compensate hand-shake, Intelligent ISO Control to detect subject movement, Face Detection AF/AE to focus on faces in the frame and remove unwanted red-eye, Intelligent Scene Selector to select the optimal scene mode automatically, Intelligent Exposure to correct the brightness level, and AF Tracking to continually track a moving subject and keep it in focus.