Nikon SB-800 instruction manual and Rear-curtain sync, Shooting data

and Rear-curtain sync

■■■ Rear-curtain sync

In normal flash photography, when shooting fast-moving subjects at slow shutter speeds, unnatural-looking pictures can occur, because the subject frozen by the flash appears behind or within the blurred movement (see photo below right).

Rear-curtain flash sync creates a picture in which the blur of a moving subject (for example, the taillights of a car) appears behind the subject and not in front.

•In front-curtain sync, the flash fires immediately after the front curtain opens completely; in rear-curtain sync, the flash fires just before the rear curtain starts to close.

•Available with cameras providing rear-curtain sync. You cannot set this mode on the SB-800 directly, but must set it on the camera. For details, see your camera’s instruction manual.

•Since slow shutter speeds are usually used, use a tripod to prevent camera shake.

•This function does not operate in Repeating flash operation.

•In multiple flash, the master flash unit can be set to either front-curtain or rear-curtain sync flash. However, the remote units cannot be set to rear-curtain sync flash (p. 72).

Other functions

Rear-curtain sync		Front-curtain sync
Shooting data
• Focal length:	70mm
• Shutter speed:	2 sec.
• Aperture:	f/4.5
• Flash mode:	Manual

• Flash output level: M1/1

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