136
13.4 Second curtain synchronisation (REAR)
Some cameras offer the option of second-curtain
synchronisation (REAR), in which the flash unit is
not triggered until the end of the exposure time.
This is particularly advantageous when used with
lower shutter speeds (slower than 1/30 sec.) and
moving subjects that have their own source of light.
With second-curtain synchronisation, a moving
light source will trail a light streak instead of buil-
ding one up ahead itself, as it does when the flash
is synchronised with the first shutter curtain. In this
way a „more natural“ image of the photographic
situation is produced!
Depending on its operating mode, the camera sets
shutter speeds slower than its sync speed.
On some cameras the REAR function is not possible
in certain operating modes (e.g., certain vari- or
subject programs, or with red eye reduction). In the-
se cases, the REAR mode cannot be selected and/or
is automatically cancelled or ignored (see camera’s
operating instructions).
The REAR mode is set on the camera (see camera’s
operating instructions).
Use a tripod when shooting with slow shutter
speeds to avoid blurred images!
k
+
