Nikon SB-28 - Manual (Page 77)

In normal flash synchronization, the SB-28 fires at the beginning of the
exposure just after the front shutter curtain opens. When shooting fast-
moving subjects at slower shutter speeds, this usually results in
unnatural-looking pictures where the subject frozen by the flash
appears behind or within the blurred movement.
In rear-curtain flash sync, the flash fires at the end of the exposure, just
before the rear curtain closes, creating a picture in which the frozen
subject is in front of the blurred action.
• Because the SB-28 does not have its own rear-curtain control, only those
cameras with a rear-curtain flash sync mode can perform this function by
setting it on the camera.
Rear-curtain flash sync (rear) Front-curtain flash sync (normal)
• No rear-curtain flash sync indicator appears on the SB-28’s LCD panel even when
this mode is set on the camera.
• In multiple flash setups, the main flash unit can be set to either front-curtain or rear-
curtain flash sync. The secondary units, however, cannot be set to rear-curtain
flash sync.
77
Rear-curtain flash sync
Cameras in Groups I through III featuring a rear-curtain flash sync mode
(F5, F100, F90X/N90s, F90-Series/N90, F80-Series/N80-Series, F70-Series/N70,
F65-Series/N65-Series, F-601/N6006 and Pronea 600i/6i cameras only)