Nikon D300 - Manual (Page 318)

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❚❚Manual
Choose a flash level between [Full] and [1/128] ( 1 /
128
of full power).
At full power, the built-in flash has a Guide Number of 18/59 (m/ft.,
ISO 200, 20°C/68°F).
❚❚Repeating Flash
The flash fires repeatedly while the shutter
is open, producing a strobe-light effect.
Press
4 or 2 to highlight the following
options, 1 or 3 to change.
A
“Times”
The options available for [Times] are determined by flash output.
Option Description
Output Choose flash output (expressed as a fraction of full power).
Times
Choose the number of times the flash fires at the selected
output. Note that depending on shutter speed and the
option selected for [Frequency], the actual number of
flashes may be less than selected.
Frequency Choose how often the flash fires per second.
Output Options available for [Times]
1/4 2
1/8 2–5
1/16 2–10
1/32 2–10, 15
1/64 2–10, 15, 20, 25
1/128 2–10, 15, 20, 25, 30, 35