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Fig. 12 / Grabado 12
Fig. 13 / Grabado 13
REAR
1
Fig. 14 / Grabado 14
2
30
5. Flash synchronisation
5.1 Normal synchronisation (Fig. 12)
In normal synchronisation the mecablitz is triggered
at the beginning of the shutter time (1st curtain syn-
chronisation). Normal synchronisation is the stand-
ard mode on all cameras, and is suitable for most
flash shots. Depending upon the given mode, the
camera is changed over to the sync speed, the custo-
mary ones being between 1/30th sec. and 1/125th
sec. (see the camera's operating instructions and
7.2). No settings have to be made on the mecablitz,
nor is there any display for this mode.
5.2 REAR - Second-curtain synchronisation
(Fig. 13)
Pentax AF cameras offer the facility of second-
curtain synchronisation (REAR mode) triggering
the mecablitz by the end of the exposure time.
Second-curtain synchronisation is particularly
advantageous when using slow shutter speeds
(slower than 1/30 s) or when shooting moving
objects that have their own source of light.
Second-curtain synchronisation gives a more rea-
listic impression of movement because the light
streaks behind the light source instead of building
up in front of it, as is the case when the flash is
synchronised with the 1st shutter curtain!
Depending on its operating mode, the camera
uses shutter speeds slower than its sync speed.
Switching on the REAR mode (Fig. 14)
Continue depressing the „Select" key combina-
1
tion (= „Mode" key + „Zoom" key) until „REAR"
appears on the LC display.
Continue depressing the „Zoom" key until „ON"
2
flashes on the LC display.
• The setting becomes immediately effective. The
LC display is returned its normal state after
approx. 5 sec.
The „REAR" symbol for 2nd curtain synchroni-
sation continues to be indicated on the mecablitz
LC display after it has been set.
Always use a tripod to avoid camera shake
with slow shutter speeds! Do not forget to
switch off this function after exposure, other-
wise unintended slow shutter speeds will conn-
tinue to be used for „normal" flash shots.
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