3Custom Function Settings

C.Fn IV: Operation/OthersC.Fn IV -1 Shutter button/AF-ON button

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/Meter + 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 repeatedly 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 AF-ON/AE lock button switch

0:Disable

1:Enable

The functions of the <p> and <A/y> buttons will be switched with each other’s function.

C.Fn IV -3 Quick Control Dial in metering

The Quick Control Dial’s function while the metering is active can be changed.

0:Exposure compensation/Aperture

1:AF point selection

You can select the AF point directly with the <5> dial without first pressing the <S> button. While metering is active, turning the <5> dial will select a horizontal AF point. Automatic selection cannot be selected. However, if C.Fn III -11-2 has also been set, automatic selection can be selected. Press the <O> button and turn the <6/5> dial to set the aperture for exposure compensation or manual exposure.

2: ISO speed

While metering is active, you can turn the <5> dial to change the ISO speed in real-time.

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