Canon EOS 550D 用户手册

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Handy Features

To save battery power, the camera turns off automatically after the set 
time of idle operation elapses. You can set this auto power-off time. 
When the camera has turned off due to auto power off, you can wake 
up the camera by pressing the shutter button halfway or any of the 
following buttons: <M> <B> <x> etc.
If [Off] has been set, either turn off the camera yourself or press 
the <B> button to turn off the shooting settings display to save 
battery power.
If [Off] has been set and the camera is not used for 30 min., the 
LCD monitor will turn off automatically. To turn on the LCD monitor 
again, press the <B> button.

Under the [5] tab, select [Auto power 
off], then press <0>. Select the desired 
power-off time, then press <0>.

You can adjust the brightness of the LCD monitor to make it easier to 
read.

Under the [6] tab, select [LCD 
brightness], then press <0>. With the 
adjustment screen displayed, press the 
<U> key to adjust the brightness, then 
press <0>.
When checking the exposure of an 
image, set the LCD monitor brightness to 
4 and prevent the ambient light from 
affecting the reviewed image.

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