Canon 510 HS - Manual (Page 119)

Shooting Range and Focusing
119
You can change default camera operation of constantly focusing on subjects
it is aimed at, even when the shutter button is not pressed. Instead, you can
limit camera focusing to the moment you press the shutter button halfway.
z Touch H, touch n, choose
[Continuous AF] on the 4 tab, and then
choose [Off] (p. 50).
• Focusing may not be possible in some shooting conditions.
• In low-light conditions, Servo AF may not be activated (AF frames
may not turn blue) when you press the shutter button halfway. In this
case, the focus and exposure are set according to the specified AF
frame mode.
• If adequate exposure cannot be obtained, shutter speeds and
aperture values are displayed in orange. Release the shutter button,
and then press it halfway again.
• AF lock shooting is not available.
• [AF-Point Zoom] on the 4 tab is not available.
• Not available when using the self-timer (p. 62).
Changing the Focus Setting
IXUS 510 HS
Still Images
On
Helps avoid missing sudden photo
opportunities, because the camera
constantly focuses on subjects until you
press the shutter button halfway.
Off
Conserves battery power, because the
camera does not focus constantly.