AF: Changing the Autofocus Operation
You can select the AF (autofocus) operation characteristics suiting the shooting conditions or subject. In Basic Zone modes, the optimum AF operation is set automatically for the respective shooting mode.

	Set the lens’s focus mode switch to <AF>.
	Press the  button. [AF operation] will appear.
	Select the AF operation. Press the keys or turn the  dial to select the desired AF operation, then press . Focus on the subject. Aim the AF point over the subject and press the shutter button halfway. The camera will then autofocus in the selected AF operation

One-Shot AF for Still Subjects
Suited for still subjects. When you press the shutter button halfway, the camera will focus only once.

• When focus is achieved, the dot inside the AF point achieving focus lights up briefly in red, and the focus indicator appears in the viewfinder.
• With evaluative metering, the exposure setting will be set at the same time focus is achieved.
• While you hold down the shutter button halfway, the focus will be locked. You can then recompose the shot if desired.

 

•  If focus cannot be achieved, the focus indicator in the viewfinder will blink. If this occurs, the picture cannot be taken even if the shutter button is pressed completely. Recompose the shot and try to focus again, or see “Subjects Difficult to Focus on”.
• If is set to [Disable], the beeper will not sound when focus is achieved.

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AI Servo AF for Moving Subjects
This AF operation is suited for moving subjects when the focusing distance keeps changing. While you hold down the shutter button halfway, the camera will keep focusing on the subject continuously.

• The exposure is set at the moment the picture is taken.
• When the AF point selection (p.99) is automatic, the camera first uses the center AF point to focus. During autofocusing, if the subject moves away from the center AF point, focus tracking continues as long as the subject is covered by another AF point.

With AI Servo AF, the beeper will not sound even when focus is achieved. Also, the focus indicator in the viewfinder will not light up.

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AI Focus AF for Switching the AF Operation Automatically
AI Focus AF switches the AF operation from One-Shot AF to AI Servo AF automatically if a still subject starts moving.

• After the subject is focused in One-Shot AF, if the subject starts moving, the camera will detect the movement, change the AF operation automatically to AI Servo AF, and start tracking the moving subject.

When focus is achieved in the AI Focus AF operation with the Servo mode active, the beeper will sound softly. However, the focus indicator in the viewfinder will not light up. Note that focus will not be locked in this case.