Canon SD850 IS Camera Lens User Manual


 
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The autofocus frame (AF frame) indicates the area used to set the
focus. Select from among the following three focusing methods.
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(No frame)
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Face
Detect
On
Youcan have the camera automatically detect
the position of a face and use this data to set the
focus and exposure* while shooting. In addition,
the camera will meter the subject so that the face
is correctly illuminated when the flash fires. If a
face is not detected, shooting will take place with
[on].
*Only in evaluative metering mode (p. 55).
The camera detects the subject and highlights
the AF frames, from 9 available points, that it will
use to determine the focus.
The camera focuses using the center AF frame.
OFF This is convenient for focusing on a specific part
of a subject with greater certainty.
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The AF frame appears as follows (when the LCD monitor is
on) when the shutter button is pressed halfway.
- Green: Shooting preparations complete
- Yellow: Focusing difficulty (AiAF set to [Off])
- No Display: Focusing difficulty (AiAF set to [On])
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