Canon PowerShot G10 - Manual (Page 124)

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z If the LCD monitor display is turned off, the focus setting will
change as follows (only [AiAF] and [Center] are available).
- [Face Detect] will change to [AiAF].
- [FlexiZone] will change to [Center].
z The AF frame appears as follows when the shutter button is
pressed halfway.
- Green: In focus
- Yellow: Focusing difficulty ([Center] or [FlexiZone] option)
- No AF frame: Focusing difficulty ([Face Detect] or [AiAF]
option)
Face Detect Feature
z When the camera detects faces, AF frames will be displayed on a
maximum of three faces. At this point, the frame the camera
judges to be the main subject appears in white while the others
appear in gray. When the shutter button is pressed halfway and
the camera focuses, up to 9 green AF frames may appear. You
can also select the person you wish to focus on
(p. 125) .
z If the white frame fails to appear and only gray frames appear, or if
a face is not detected, the focusing method will change as follows.
- When [Single] is selected, images will be shot in [AiAF] mode.
(When [Servo AF] is set to [On], images will be shot in [Center]
mode.)
- When [Continuous] is selected, images will be shot in [Center]
mode.
z The camera may mistakenly identify non-human subjects as a
face.
z In certain cases, faces may not be detected.
Examples:
- If faces are at the edge of the screen, or appear extremely small,
large, dark or bright, relative to the overall composition.
- Faces turned to the side or at a diagonal, or faces with a portion
hidden.