Canon EOS-1D X Mark III Af Setting Manualbook page 110

You can assign convenient functions to
buttons and dials with the Custom
Controls.
There are many useful settings that can be assigned to
each button with customization function C.Fn6 [Custom
Controls]. For example, when using AF functions that can
be assigned to the
of the camera, you can instantly switch functions to match
the subject and situation without changing how you hold
the camera.
When [Metering and AF start] is assigned to the
〈 〉
buttons, you can perform detailed settings in [AF
start point], [AI Servo AF characteristics (Case)], [AF
operation], and [AF area selection mode]. Using those
settings, you can instantly switch parameters to match
subject movement and characteristics by using the
button to switch to Case1, and the
to Case2, or using the
〈
AF, and the
You can customize controls to meet your preferences or
the scene.
〈 〉
and
〈 〉
button to switch to AI Servo
〉
button to switch to One-Shot.
110 110
〈 〉
buttons on the back
〈 〉
button to switch
〈 〉
or
〈 〉