Canon EOS-1DX MARK II Settings Manual page 56

Hints & Tips
Modes other than [Single-point spot AF] are
recommended when shooting fast moving
subjects
As [Single-point Spot AF] only focuses on one
very small area, it is not really suited to capturing
fast moving subjects when set to AI Servo AF and
may take longer to focus than other AF area
selection modes.
Single-point
spot AF
Photo
Touch to
enlarge
image
It is possible to focus on pinpoints such as the
eye when a helmet is being worn
Snapshot of a motorcycle rider wearing a helmet.
Focus was pinpointed on the eye using [Single-point
Spot AF].
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