Canon S90 用户手册

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页码 179
91
You can change the Metering mode (brightness measuring function) to 
match the shooting conditions.
Choose the Metering mode.
After pressing the 
m button, press the 
op buttons to choose  .
Choose an option.
Press the 
qr buttons or turn the Ê dial to 
choose an option, then press the 
button.
The setting will display on the screen.
Changing the Metering Mode
Evaluative
Suitable for standard shooting conditions, including back 
lit shots. Automatically adjusts the exposure to match the 
shooting conditions.
Center Weighted Avg.
Averages the light metered from the entire frame, but 
gives greater weight to the center.
Spot
Only meters within the 
 (Spot AE Point frame) that 
appears at the center of the screen.