Cannon PowerShot Camera Manual De Usuario

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 Contents
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 Chapter Contents
If faces are not detected, or when only gray frames are 
displayed (without a white frame), up to nine green frames 
are displayed in the areas in focus when you press the 
shutter button halfway.
If faces are not detected when Servo AF (
[On], the AF frame is displayed in the center of the screen 
when you press the shutter button halfway.
Examples of faces that cannot be detected:
Subjects that are distant or extremely close
Subjects that are dark or light
Faces in profile, at an angle, or partly hidden
The camera may misinterpret non-human subjects as 
faces.
No AF frames are displayed if the camera cannot focus 
when you press the shutter button halfway.
Still Images
Choosing Subjects to Focus On (Tracking AF)
Shoot after choosing a subject to focus on as follows.
1
 Choose [Tracking AF].
z
z
Follow the steps in “Changing 
to choose [Tracking AF].
z
z
[ ] is displayed in the center of 
the screen.