Canon PowerShot ELPH 180 Silver 手册

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页码 216
56
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 Contents
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 Chapter Contents
Faces may not be detected at some zoom factors, or if the 
subject’s head is tilted or facing the camera indirectly.
Auto zooming is deactivated in the following situations.
When you change the shooting mode
When you press the [
] button, movie button, or [ ] button
When you press the [ ] button
When a detected subject moves toward the edge of the screen, the 
camera zooms out to keep the subject on the screen.
The zoom factor cannot be changed after you press the shutter 
button all the way down in self-timer mode (
).
The camera prioritizes zooming to keep subjects on the screen. 
For this reason, it may not be possible to maintain a constant 
face display size, depending on subject movement and shooting 
conditions.
When no face is detected, the camera zooms to a certain level and 
stops zooming until a face is detected.