Canon PowerShot G15 User Manual page 68

Common, Convenient Features
Choosing Subjects to Focus On (Tracking AF)
Shoot after choosing a subject to focus on as follows.
• Tracking may not be possible when subjects are too small or move too
rapidly, or when subject color or brightness matches that of the background
too closely.
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1
Specify Tracking AF.
z z Press the <o> button.
X X [ ] is displayed in the center of the
screen.
2
Choose a subject to focus on.
z z
Aim the camera so that [
desired subject, and then press the
shutter button halfway.
X X A blue frame is displayed, and the
camera will keep the subject in focus and
image brightness adjusted (Servo AF).
3
Shoot.
z z
Press the shutter button all the way down
to shoot.
z z Press the <o> button to cancel Tracking
AF.
Still Images
] is on the