Canon PowerShot G12 PowerShot G12 Camera User Guide - Page 92
Changing the AF Frame Mode
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Changing the AF Frame Mode You can change the AF (Auto Focus) frame mode to match the scene you want to shoot. Choose [AF Frame]. ● After pressing the n button, choose [AF Frame] in the 4 tab, then press the qr buttons to choose an option. Face AiAF • Detects people's faces and sets the focus, exposure (evaluative metering only) and white balance ( only). • When the camera is pointed at subjects, a white frame appears on the face the camera judges to be the main subject, and gray frames (max. 2) will appear on other faces. • A frame will follow a moving subject within a certain range. • When the shutter button is pressed halfway, up to 9 green frames will appear on faces that the camera focuses on. • If a face is not detected and only gray frames (no white frame) appear, up to 9 green frames will appear on the areas the camera focuses on when the shutter button is pressed halfway. • The AF frame will appear in the center of the screen if you press the shutter button halfway when Servo AF (p. 94) is set to [On] and a face is not detected. • Examples of faces that cannot be detected: • Subjects that are far away or extremely close. • Subjects that are dark or light. • Faces turned to the side or at a diagonal, or faces with a portion hidden. • The camera may mistakenly identify non-human subjects as a face. • If the camera cannot focus when you press the shutter button halfway, the AF frame will not appear. Tracking AF • You can choose the subject you want to focus on and shoot (p. 95). 92