Canon EOS 1D - Manual (Page 223)

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3 Custom Function Settings
C.Fn III -9 Multi-controller while metering
0: Off
1: AF point selection
During viewfinder shooting while the metering is active, you can select
the AF point directly with <9> instead of pressing the <S> button first.
C.Fn III -10 Selectable AF point
You can change the number of manually-selectable AF points. During
automatic AF point selection, all 45 AF points will be selectable regardless
of the setting below.
0: 45 points
1: 19 points
Sets the same manually-selectable 19 points as with the EOS-1D Mark
III.
2: 11 points
Sets 11 manually-selectable AF points.
3: Inner 9 points
Sets 9 manually-selectable inner AF points.
4: Outer 9 points
Sets 9 manually-selectable outer AF points.
The AF point selection sequence is shown below:
[Inner 9 points] [Outer 9 points]
[19 points] [11 points]
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COP
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