3 Custom Function Settings

2: Release/Drive speed priority

For the first shot, shutter release is given priority over focusing the subject. During continuous shooting, the continuous shooting speed is given priority more than with setting 1.

3: Release/Tracking priority

For the first shot, shutter release is given priority over focusing the subject. For the second and following shots during continuous shooting, focus-tracking of the subject is given priority.

C.Fn III -4 AI Servo AF tracking method

In the AI Servo AF mode while you are focus-tracking a subject, the camera can either continue focusing the target subject even if a closer subject (closer than at the main focus point) suddenly appears in the picture, or the camera can switch to focus the closer subject.

* Main focus point = With automatic AF point selection: Center AF point

With manual AF point selection + AF point expansion (C.Fn III -8- 1/2/3): Manually-selected AF point

0: Main focus point priority

The active AF point will switch to the main focus point and start focusing the closer subject. Convenient when you always want to focus the closest subject.

1: Continuous AF track priority

Any closer subject appearing in the picture will be ignored as an obstruction. The main focus point does not take priority, so the tracking of the target subject can continue and switch to an adjacent AF point based on the preceding focusing result. Convenient when obstacles such as telephone poles appear in front of the target subject.

C.Fn III -5 Lens drive when AF impossible

If focus cannot be achieved with autofocus, the camera can either keep trying to focus or stop.

0:Focus search on

1:Focus search off

Prevents the camera from becoming grossly out of focus as it attempts to focus again. Especially convenient with super telephoto lenses which can become extremely out of focus.

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