Nikon 1 J1 Reference Manual page 80

[] Loweringthe Built-in Flash
To save power when the flash is not in use,
press it gently downward until the latch
clicks into place. Do not use force. Failure to
observe this precaution could result in prod-
uct malfunction.
[] Usingthe Built-in Flash
The built-in flash can be used in still image mode only. If the flash is
fired multiple times in quick succession, the flash and shutter may be
temporarily disabled to protect the flash. Shooting can be resumed
after a brief pause.
Objects close to the camera may be overexposed in photographs taken
with the flash at high ISO sensitivities.
To avoid vignetting, remove lens hoods and shoot at ranges of at least
0.6 m (2 ft). Some lenses may cause vignetting at greater distances or
obstruct the red-eye reduction lamp, interfering with red-eye reduc-
tion; for more information, visit a Nikon website. The following illustra-
tions show the effect of vignetting caused by shadows cast by the lens
when the built-in flash is used.
Shadow Shadow
[] SeeAlso
For information on adjusting the flash level, see "Flash Compensation"
(_ 146).
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