After Selecting All The Images To Be Copied, Press The <O_/@> Button - Canon EOS-1DS MARK III Instruction Manual

Custom Function Settings
You can instantly switch to the registered AF point with < _ > while the metering
timer is active. (AF is activated at the moment when AF point is switched.)
O: Disable
1: Enable
By pressing < _1_>, you can switch to the registered AF point. Press it
again to switch to the previous AF point.
Registering the AF point (Multiple AF points Cannot be registered,)
2.While holding down the <_> button, press the <[SO> button.
ffyou change the C:Fn HI :9 setting, th e registered AF point wi! ! be
canceled. The camera will switch to the center AF point.
For AF point selection, you can enable or disable automatic seJection.
The setting before the slash (/) applies to the <O> dial's function with C.Fn
iV -3-1 set. And the setting after the slash appbies to the <_> dia!'s
function when the <B> button is pressed.
0: O direct:disabJel_ :enable
When metering is active, the <O > diaJ cannot select automatic
selection. You can select automatic selection with < _ >.
1: O direct:disabJel_ :disable
Automatic selection cannot be selected.
2: O direct:enab[el _ :enable
When metering is active, the <O> dial can select automatic selection.
You can select automatic selection with <_>.
0: On
1: Off
The AF point wil! not light in red other than during AF point selection.
2: On (when focus achieved)
The manually selected AF point will not dimly light during autofocusing.
(The AF point will light only when AF is started or focus is achieved_)
171