Canon EOS 1D Mark II N Instruction Manual page 165

C.Fn-11
0: z=S+6 x=S+5
1: z=O+6 x=O+5
This reverses the functions of the <
2: z=5 only x=P+6
While exposure metering is active, turn the <
horizontal AF point. (If C.Fn-13-3 has been set, select a peripheral AF
point.) This is also possible while you press the shutter button halfway
and during continuous shooting with AI Servo AF. The AF point selection
stops at the extreme left, extreme right, top-most, and bottom-most AF
points.
During autofocusing, you can press the <
to the automatic AF point selection mode.
You can also select the AF point (including automatic AF point selection)
with the same operation as C.Fn-11-1.
If both C.Fn-11-2 and C.Fn-18-1/2 (p.168) have been set, select a vertical
AF point by pressing the <
3: z=I+6 x=I+5
This reverses the functions of the <
C.Fn-12
0: Disable
1: Enable
Effective for close-up and telephoto shots to prevent camera shake caused
by the mirror's reflex action. See page 111 for the mirror lockup procedure.
AF point selection method
S
O
> button and turning the <
S
Mirror lockup
3 Custom Function Settings
O
> button and < > button.
5
> dial to select a
S
> button to switch instantly
I
> button and <
5
> dial.
> button.
165