Shooting Range and Focusing119You can change default camera operation of constantly focusing on subjectsit is aimed at, even when the shutter button is not pressed. Instead, you canlimit camera focusing to the moment you press the shutter button halfway.z Touch H, touch n, choose[Continuous AF] on the 4 tab, and thenchoose [Off] (p. 50).• Focusing may not be possible in some shooting conditions.• In low-light conditions, Servo AF may not be activated (AF framesmay not turn blue) when you press the shutter button halfway. In thiscase, the focus and exposure are set according to the specified AFframe mode.• If adequate exposure cannot be obtained, shutter speeds andaperture 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 SettingIXUS 510 HS Still ImagesOnHelps avoid missing sudden photoopportunities, because the cameraconstantly focuses on subjects until youpress the shutter button halfway.Off Conserves battery power, because thecamera does not focus constantly.