Canon 5D Mark III User Manual (en)

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73
S
 Selecting the AF AreaN
AF point expansion (Manual 
selection, surrounding points)
The manually-selected AF point <S> 
and the surrounding AF points <w> are 
used to focus.
Zone AF (Manual selection of 
zone)
The 61 AF points are divided into nine 
zones for focusing.
61-point automatic selection AF
All the AF points are used to focus. This 
mode is set automatically in the <
A
mode.
Select the AF area selection 
mode.
 
Press the <S> button.
 
Look through the viewfinder and 
press the <B> button.
X
Press the <B> button to switch the 
AF area selection mode.
Select the AF Area Selection Mode
 
With [24: Select AF area selec. mode], you can limit the selectable 
AF area selection modes (p.99).
 
If you set [24: AF area selection method] to [
Main Dial], you can 
select the AF area selection mode by pressing the <S> button, then 
turning the <6> dial (p.100).