Canon EOS-1D C Instruction Manual page 370

Menu Settings
2: AF3 (Purple)
USM lens electronic MF
AF-assist beam firing
One-Shot AF release
priority
2: AF4 (Purple)
Auto AF point
selection: EOS iTR AF
Lens drive when AF
impossible
Selectable AF point
Select AF area
selection mode
AF area selection
method
Orientation linked AF
point
370
Enable after One-Shot AF / Disable after One-
Shot AF / Disable in AF mode
Enable / Disable / IR AF assist beam only
Release priority / Focus priority
Enable / Disable
Continue focus search / Stop focus search
61 points / Only cross-type AF points / 15
points / 9 points
Manual selection: Spot AF / Manual selection:
1 point AF / Expand AF area:
area: Surround / Manual selection: Zone AF /
Auto selection: 61 point AF
S → M-Fn button / S → Main Dial
Same for both vertical/horizontal / Select
separate AF points
Page
94
95
95
96
97
97
/ Expand AF
98
99
99