Samsung Digimax GX-1S User Manual page 124

Focusing
4. Re-compose the picture while keeping the shutter release
button pressed halfway.
INFORMATION
The focus is locked while the focus indicator
Turning the zooming ring in focus lock mode may cause the subject to be out of focus.
The beep can be turned off. (p.158)
You cannot set focus lock when the focus mode is set to
mode is set to (Moving Object). In
autofocus continues to focus on the subject until the shutter is released. (Continuous Autofocus)
Fixing Exposure when Focus is Locked
Set [AE-L with AF locked] in the [
focus is locked. Exposure is not fixed by default during focus lock.
1 Off Exposure is not fixed when focus is locked.
2 On Exposure is fixed when focus is locked.
is lit.
(Continuous mode) or
Custom Setting] menu (p.98) to fix the exposure value while
(Continuous mode) or the capture
(Moving Object) mode, the
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