Solution
Selecting the AF Mode[One-Shot AF] for Still Subjects
[AI Servo AF] for Moving Subjects
[AI Focus AF] for Automatic Switching of AF Mode
You can select the AF operation characteristics to suit the shooting conditions or subject. In the [ ] mode, "AI Focus AF" is set automatically.
Selecting the AF Mode
1. Set the lens focus mode switch to [AF].
2. Set the camera's power switch to [ON].
3. Set the Mode Dial to [ P / Tv / Av / M / B ].
4. Press the [ DRIVE・AF] button.
5. While looking through the viewfinder or at the LCD panel, turn the [ ] dial to select the AF mode.
Caution
In the [P], [Tv], [Av], [M], or [B] mode, AF is also possible by pressing the [AF-ON] button.
[One-Shot AF] for Still Subjects
Suited for still subjects. When you press the shutter button halfway, the camera will focus only once.
Caution
[AI Servo AF] for Moving Subjects
This AF mode is for moving subjects when the focusing distance keeps changing. While you hold down the shutter button halfway, the subject will be focused continuously.
Caution
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.
[AI Focus AF] for Automatic Switching of AF Mode
AI Focus AF switches the AF mode from One-Shot AF to AI Servo AF automatically if the 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.
Caution
When focus is achieved with AI Focus AF with the Servo operation active, the beeper will continue beeping softly. However, the focus indicator [ ] in the viewfinder will not light up. Note that focus will not be locked in this case.