Canon PowerShot G15 User Guide - Page 151

Shooting Range and Focusing Changing the Focus Setting Still Images 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. zzPress the button, choose [Continuous AF] on the [4] tab, and then choose [Off] (=48). Helps avoid missing sudden photo On 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. Still Images Choosing a Person to Focus On (Face Select) You can shoot after choosing a specific person's face to focus on. 1 Set the AF frame to [Face AiAF] (= 145). 2 Enter Face Select mode. zzAim the camera at the person's face and press the < > button. XXAfter [Face Select : On] is displayed, a face frame [ ] is displayed around the face detected as the main subject. zzEven if the subject moves, the face frame [ ] follows the subject within a certain range. zzIf a face is not detected, [ ] is not displayed. 151