Exposure/Focus Lock - Samsung NX500 User Manual

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Exposure/Focus lock

If you cannot achieve an appropriate exposure because of a strong light/
dark contrast between the subject and the background, or you want to
capture a photo in which the subject is out of the auto focus area, lock the
focus or exposure and then capture a photo.
When the exposure lock function is assigned to [a] (example)
1
Set the focus frame and half-press [Shutter] to measure the
exposure.
2
Press [a] to lock the exposure.
3
Make changes to the composition after the exposure is locked.
4
Half-press [Shutter] to achieve focus, and then press [Shutter]
to take a photo.
When the focus lock function is assigned to [a] (example)
1
Set the focus frame and half-press [Shutter] to achieve focus.
2
Press [a] to lock the focus.
3
Make changes to the composition after the focus is locked.
4
Half-press [Shutter] to measure the exposure, and then press
[Shutter] to take a photo.
You can change the function assigned to [a] to focus lock, exposure lock, or
both. (p. 172)
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