Canon EOS 6D Mark II Instruction Manual page 484

3 Custom Function SettingsN
C.Fn II-11
You can set the AI Servo AF's starting AF point for when the AF area
selection mode is set to Auto selection AF.
0: Auto
The AF point that AI Servo AF starts with is set automatically to
suit the shooting conditions.
1: Initial AF pt selected
AI Servo AF will start with the manually-selected AF point when
the AF operation is set to AI Servo AF and the AF area selection
mode is set to Auto selection AF.
2: Manual AF pt
If you switch from Single-point Spot AF or Single-point AF to Auto
selection AF, AI Servo AF will start with the AF point that was
manually selected before the switch. Useful if you want AI Servo
AF to start with the AF point that was selected before the AF area
selection mode is switched to Auto selection AF.
When [2: Manual
corresponding to the manually-selected AF point even if the AF area
selection mode is switched to Zone AF or Large Zone AF.
484
Initial AF Point,
AF pt] is set, AI Servo AF will start with the zone
AI Servo AF