Canon EOS5DMARKIIIKIT 사용자 설명서

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3
 Custom Function SettingsN
152
C.Fn-04
Shutter/AE lock button
0: AF/AE lock
1: AE lock/AF
Convenient when you want to focus and meter separately. Press the <A> 
button to autofocus and press the shutter button halfway to attain AE lock.
2: AF/AF lock, no AE lock
In the AI Servo AF mode, you can press the <A> button to stop 
the AF operation momentarily. This prevents the AF from being 
thrown off by any obstacle passing between the camera and 
subject. The exposure is set at the moment the picture is taken.
3: AE/AF, no AE lock
This is useful for subjects which keep moving and stopping 
repeatedly. In the AI Servo AF mode, you can press the <A> button 
to start or stop the AI Servo AF operation. The exposure is set at the 
moment the picture is taken. Thus, the focusing and exposure will 
always be at the optimum point as you wait for the decisive moment.
C.Fn-05
AF-assist beam
Enables or disables the EOS-dedicated Speedlite’s AF-assist beam.
0: Emits
The AF-assist beam is emitted when necessary.
1: Does not emit
C.Fn-06
Exposure level increments
0: 1/3-stop
1: 1/2-stop
Sets 1/2-stop increments for the shutter speed, aperture, exposure compensation, AEB, etc.
C.Fn-04 and C.Fn-19-0, 1, 2 (p.157) both have AF start/stop and AE lock 
functions. If you have set both these Custom Functions and you execute 
both Custom Function operations, the latter operation will not work. The only 
exception will be when AF stop is executed after AF start.
The exposure level will be displayed in the viewfinder and on the LCD panel as shown below.