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Nikon Camera N90 User Manual

Page 193

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TO CREATE NATURAL-LOOKING STREAM OF LIGHT—REAR-CURTAIN SYNC

Normally in flash synchronization, the Speedlight fires at the

beginning of the exposure. When the shutter speed is low, the
result is an unnatural light pattern.

When Rear-Curtain Sync is set, the Speedlight fires at the end

of the exposure, turning available light into a stream of light that

follows the flash-illuminated moving subject.

Since Rear-Curtain Sync Is especially effective at a slow shutter
speed. Slow Sync is automatically set at the same time that

Rear-Curtain Sync is set in the Auto-Multi Program or Aperture-
Priority Auto exposure mode. However, to set a desired shutter

speed, set the N90 to Shutter-Priority Auto or Manual exposure

mode.

• When the SB-25 or SB-24 is used, note that the Rear-Curtain

Sync setting on the camera body is ignored. So you have to
set the speedlight unit itself for Rear-Curtain Sync .

• Rear-Curtain Sync cannot be set with Vari-Program
• Rear-Curtain Sync cannot be set if Red-Eye Reduction (p.

144) has been set.

Rear-Curtain Sync with low shutter speed

Front-Curtain Sync with low shutter speed

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