Canon EOS-3 manual AF Modes, One-Shot AF for Still Subjects, AF Mode Selection

AF Mode Selection

AF Modes

Different AF modes have different AF operation characteristics. The camera has two AF modes: One-Shot AF for still subjects, and AI Servo AF for moving subjects. (AI is an abbreviation for Artificial Intelligence.) Select the AF mode which suits the subject.

One-Shot AF for Still

Subjects

Pressing the shutter button halfway activates AF operation and achieves focus.

• The focusing point which achieves focus flashes briefly and the in-focus indicator (●) in the viewfinder lights at the same time.

•When the < > switch is set to < >, the beeper also sounds when focus is achieved.

•With evaluative metering, the exposure setting

(shutter speed and aperture) will be set when focus is achieved. The exposure setting and focus will be locked as long as the shutter button is pressed halfway. You can then recompose the shot while retaining the exposure setting and point of focus. See page 49.

In-focus indicator

Focusing point

If focus cannot be achieved, the in-focus indicator in the viewfinder will blink. If this occurs, a picture cannot be taken even if the shutter button is pressed completely. Reframe the shot and focus again. Also see “Manual Focusing” on page 52.

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