Canon PowerShot A 1000 IS User Manual page 74

You can adjust the standard exposure set by the camera in 1/3-stop
increments in the range of -2 to +2.
Select the exposure
com pensation.
Press the
@
button, then use the .........
buttons to select
:to.
Adjust the Brightness.
While watching the screen, press the
~ ~
buttons to adjust the brightness, then
press the
@
button.
After the picture has been taken, return
the setting to
Ql
(zero).
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