Canon EOS 7D - Manual (Page 147)

147
Using AF to Focus
The dedicated AF sensor is used to focus in the One-Shot AF mode
(p.89), using the same AF method as with viewfinder shooting.
Although you can focus the target area quickly, the Live View image
will be interrupted momentarily during the AF operation.
1
Display the Live View image.
Press the <0> button.
X The Live View image will appear on
the LCD monitor.
The small boxes on the screen are
the AF points, and the larger box is
the magnifying frame.
2
Select the AF point.
When you press the <Q> button, the
Quick Control screen will appear.
X The settable functions will be
highlighted in blue.
Use <9> to make the AF point
selectable.
Press the <B> button to change
the AF area selection mode.
Turn the <6> and <5> dial to
select the AF point.
Quick Mode: f
AF point
Magnifying frame