Af modes, One-shot af, Still subjects – Canon EOS 3 User Manual

Page 35

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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 Al Servo

AF for moving subjects. (Al 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.