Canon PowerShot ELPH 180 Silver 手册

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页码 216
54
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 Contents
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 Chapter Contents
Moving the zoom lever will display the zoom bar (which 
indicates the zoom position). The zoom bar is color-coded 
to indicate the zoom range.
White range: optical zoom range where the image will not 
appear grainy.
Yellow range: digital zoom range where the image is not 
noticeably grainy (ZoomPlus).
Blue range: digital zoom range where the image will 
appear grainy.
Because the blue range will not be available at some 
factor can be achieved by following step 1.
Zoomed images may look grainy under some recording 
zoom factor is shown in blue.