3
Custom Function Setting Items
N
404
C.Fn III: Autofocus/Drive
C.Fn-5
AF-assist beam firing
Enables or disables the built-in flash’s AF-assist beam or the EOS-
dedicated external Speedlite’s AF-assist beam.
0: Enable
The AF-assist beam will be emitted when necessary.
1: Disable
The AF-assist beam will not be emitted. This prevents the AF-
assist beam from disturbing others.
2: Enable external flash only
If an external Speedlite is attached, it will emit the AF-assist beam
when necessary. The camera’s built-in flash will not fire the AF-
assist beam.
3: IR AF assist beam only
When an external Speedlite is attached, only the infrared AF-assist
beam will be emitted. Set this when you do not want the camera to
fire the AF-assist beam as a burst of small flashes.
With an EX-series Speedlite equipped with an LED light, the LED
light will not automatically turn on as the AF-assist beam.
C.Fn-6
AF area selection method
You can set the method for changing the AF area selection mode.
0:
S
9
AF area selection button
After you press the <
S
> or <
B
> button, each time you press the
<
B
> button, the AF area selection mode changes.
1:
S
9
Main Dial
After you press the <
S
> or <
B
> button, turning the <
6
> dial
changes the AF area selection mode.
If an external Speedlite’s [
AF-assist beam firing
] Custom Function is set to
[
1:Disable
], this function’s setting will be overridden and the AF-assist beam
will not be emitted.
With setting 1, press the <
Y
> <
Z
> keys to move the AF point horizontally.
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