Selecting The Af Mode; One-Shot Autofocus - Canon EOS 1 Instructions Manual

2. Selecting the AF Mode

Two types of autofocus are available: One-shot AF and AI Servo AF.
Select the mode most appropriate for the subject and shooting situation.
• To use the camera's AF modes, the lens' focus mode switch must be set to
"AF".
P
3 2
Focusing points
The shutter will not release if the in-focus indicator is blinking. Try refocusing the subject
on an alternate subject with higher contrast at approximately the same distance, or use
manual focusing (refer to "3. Difficult Subjects for Autofocus" on page 34).
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ONE SHOT
ONE SHOT
1 1 2 3
0
In-focus Indicator
1
While pressing the AF mode selec-
tor, turn the main dial to the left or
right until the desired AF mode
appears in the LCD panel.
2
Release the AF mode selector.
● One-Shot AF
Use this mode with stationary subjects.
The shutter will not release if the sub-
ject is not in focus, preventing out-of-
focus shots. When the shutter button is
pressed halfway and the subject is
focused, the corresponding focusing
point lights red in the viewfinder, and
the in-focus indicator (●) lights up in
the viewfinder.
• In evaluative metering mode, the shutter
speed and aperture value are deter-
mined at this time, and by keeping the
shutter button pressed halfway, the focus
and exposure settings remain locked,
allowing you to recompose the picture as
desired.
ONE SHOT
AI SERVO