Canon PowerShot SD870 IS Digital Elph User Manual page 104

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Aim the camera at the subject on which you
wish to lock the exposure.
1021
Various Shooting Methods
Locking the Exposure Setting
(AE Lock)
alSee Functions Available in Each Shooting Mode (p. 238).
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You can set the exposure and focus separately. This is effective when
the contrast is too strong between the subject and background or when
a subject is backlit.
1 Press the ~ button and select
n
(flash off).
2
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3
Press the shutter button halfway and press the
M
button.
• The
III
icon will display.
4
Re-aim the camera to compose the shot as
de$ired and press the shutter button fully.
To Release the AE Lock
Press the
M
button.
Ii¥l •
In movie mode, AE lock can also be set/canceled (p. 90).
CjJ •
You can use the FE lock when using the flash.