Canon EOS-1D X Af Setting Manualbook page 36

AF area selection mode [Auto selection of 61 AF points]
AI Servo AF with all 61 points used for automatic tracking
Continuously focus-track not only as subjects come toward or away from camera, but if
One-Shot AF
With AI Servo AF and [Automatic AF point selection], the user presets one
AF point as the starting point to begin focus-tracking a subject. As it moves, this
AF Area setting continues to select other points as needed, automatically.
[Auto selection of 61 AF points]: Combined
with AI Servo AF, it's the only AF Area mode
that can automatically change AF points to
continue to cover a subject, moving side-to-side
across the entire 61-point AF array. Any time
you want the compositional freedom to have a
subject start on one side of the frame and shoot
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AI Servo AF
S t e a d y, c o n t i n u o u s A I S e r v o A F w i t h
subjects that move to the left or right of the
frame — whether it's their movement or
the photographer's.
Shooting started by pinpointing focus on the
lead cyclist with a manually selected center AF
point. While taking continuous shots, the camera
was moved to the left so the following cyclists to
the left of the leader are rendered beautifully out
of focus in the background. [Automatic AF
point selection] progressively selected right-
side AF points to keep the main subject in focus.
Hints and tips
A I Ser vo A F with [Automatic A F p oint
selection] requires the user to pre-select one
AF point to begin focus-tracking a moving
subject. New with EOS-1D X firmware v. 2.0:
An AF menu option to link the last AF point
used for manual selection as your starting
point if you switch to [Automatic AF point
selection]
continuous shots as it moves to the opposite
side, [Automatic AF point selection] should
be considered.
This AF Area mode constantly updates the
active AF points visible in the viewfinder, as
moving subjects are tracked. And the EOS-1D
X adds one special capability: EOS iTR —