Canon EOS-1D X Af Setting Manualbook page 27

the camera switch from one to another?
AF points are being used
The [AF pt auto switching] adjusts the
speed of AF point switching for subjects with
lots of lateral (side to side) movement. This
parameter is only for switching between
multiple AF points, so it has no effect with AF
Area selection modes [Single-point AF] or
[Spot AF].
The [0] setting is a standard setting for
smooth, predictable switching of AF points. The
[+1/+2] settings are used when shooting
Examples where [+] is effective: fast moving sports with big movements,
where a single AF point could lose the subject easily
AF point expansion (4-point)
Note that AF point auto switching only occurs when more than one AF point is active, as in the
AF Area examples above
AF point expansion (8-point)
subjects with erratic movement, especially side
to side. Whenever the initial or primary AF point
(again, with more than one AF point active)
leaves the subject, it will rapidly switch to
surrounding AF points to continue to follow
that subject.
Use the [+] setting when you want the
camera to speed up the process of switching AF
points; the [0] setting provides more stable
changing of AF points and is ideal for subjects
Zone AF Automatic AF pt. selection
Blue color of focus point is for illustration.
A rhythmic gymnast
s h o w i n g l o t s o f
movements in all
directions. Use the
[+1] setting for the
AF Point Expansion
t o m o r e r a p i d l y
m o v e f r o m t h e
initial, central AF
p o i n t t o a n y o f
t h e sur ro un ding
"assist" points.
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