Canon PowerShot SX130 IS User Manual page 26

If you set the mode dial to P, you can change the settings in the O tab
(p. 45).
Switching the Focus Setting
The camera focuses on whatever it is aimed at even when the shutter button
is not pressed. However, you can set it so that the camera only focuses when
the shutter button is pressed halfway.
Choose [Continuous AF], then press the
{_ buttons to choose [Off].
Since the camera focuses continuously
On until you press the shutter button
halfway, it allows you to shoot without
missing photo opportunities.
The camera does not focus
Off continuously, thereby conserving
battery power.
Turning off the AF Assist Beam
The lamp will automatically light to assist focusing in low light conditions when
you press the shutter button halfway. You can turn off the lamp.
Choose [AF-assist Beam], then press the
4 _' buttons to choose [Off].
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