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AE Lock
Your camera’s evaluative metering system is coupled to the five focusing points. It
controls the exposure according to the subject’s position, based on the focusing point in
use.
If you want to determine the exposure independently from the focusing operation, use AE
lock. Use it when you also want to change the composition of the picture after determining
the exposure. AE lock is effective for backlit subjects and other situations where there is
extremely strong contrast between the subject and the background.
1 Focus the subject that you want
to measure with the camera’s
metering system.
The exposure values are
displayed in the viewfinder and
Top LCD panel
2 Press the AE lock button.
“✳” lights in the viewfinder to
indicate that the AE lock is set.
When you release the AE lock
button (✳), the metering timer is
activated and the exposure
remains locked for six seconds.
Pressing the AE Lock button
(✳) again renews the locked
exposure setting.
AE lock is canceled six seconds
after the AE Lock indicator “✳”
lights in the viewfinder display,
or whenever you press the AF
Mode Selector button, Metering
Mode Selector button, Shooting
Mode Selector button, or
Focusing Point Selector button.
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DCS 520 DCS 560