When the Full-time AF mode is set to ON, the camera always operates in the AF mode. Why?
Full-time AF keeps the image on the LCD monitor focused at all times without having to press the shutter release button. Note the following: • Using full-time AF will drain the battery more quickly • Full-time AF is not available when the LCD monitor is turned off • For “Card set-up” or “Card cover alarm”, the AF operation of the camera does not halt.