Canon MARK IV User Manual (en)

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136
Using AF to Focus
The dedicated AF sensor is used to focus in the One-Shot AF mode 
(p.95), 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
Select the AF point.
 
Press the <o> button, then 
use <9> to select the AF point.
 
The AF point selection will change in 
the direction you tilt the <9>.
 
Pressing <9> straight down selects 
the center AF point. Pressing it 
straight down again sets it to 
automatic AF point selection.
 
If all the peripheral AF points light up, 
automatic AF point selection will take 
effect.
 
If you press the <o> button 
or when (9) elapse, the AF point 
selected on the screen will be 
displayed.
(If automatic AF point selection has 
been set, no AF point will be 
displayed.)
Quick Mode: f
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