Nikon N1538 Reference Manual page 109

A
Using the Built-in Flash
Before taking a photograph with the flash in modes that require the
flash to be raised manually, press the M (Y) button to raise the flash
and wait for the M indicator to be displayed in the viewfinder (0 54).
Shooting will be interrupted if the flash is raised after the self-timer has
started.
A
Custom Setting c3 (Self-Timer)
For information on choosing the duration of the self-timer and the
number of shots taken, see Custom Setting c3 (Self-timer; 0 241).
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