C.fn Iv: Operation/Others - Canon MARK II EOS 5D Instruction Manual

3 Custom Function SettingsN

C.Fn IV: Operation/Others

C.Fn IV -1
0: Metering + AF start
1: Metering + AF start/AF stop
During autofocusing, you can press the <p> button to stop the
autofocusing.
2: Metering start/Metering + AF start
This is useful for subjects which keep moving and stopping repeatedly.
In the AI Servo AF mode, you can press the <p> button to start or
stop the AI Servo AF operation. The exposure is set at the moment the
picture is taken. Thus, the optimum focusing and exposure will always
be achieved as you wait for the decisive moment.
3: AE lock/Metering + AF start
Convenient when you want to focus and meter at different parts of the
picture. Press the <p> button to meter and autofocus, and press
the shutter button halfway to attain AE lock.
4: Metering + AF start/Disable
The <p> button will not function.
C.Fn IV -2
0: Disable
1: Enable
The functions of the <p> and <A/y> buttons will be switched
with each other's function.
When set to 1, press the <p> button to display the image index or to
reduce the image display.
182
Shutter button/AF-ON button
AF-ON/AE lock button switch