Flash sync mode selector – Nikon Autofocus Speedlight SB-24 User Manual
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FLASH SYNC MODE SELECTOR—
(IIIIIIL)^ )
The SB-24 offers two types of flash synchronization, REAR and
NORMAL.
NORMAL synchronization, the way virtually all other systems
operate, fires the flash at the beginning of the exposure.
REAR synchronization, available with the Nikon F4 or F-801/
N8008, fires the flash at the end of the exposure.
For short exposure (speeds up to 1/250 second) you can barely
tell the difference befween the two methods. For longer expo
sures, however, when subject movement during the exposure
becomes evident, you can clearly see the difference.
Rear synchronization tends to give a more natural effect,
making the blur of subject movement appear to emanate from
the back for a more comfortable visual effect.
For details, see page 48.
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