Calculating the Shutter Speed
To ensure that the shutter remains open until all stroboscopic firing is finished, calculate a
shutter speed to set on the camera as follows.
Flash count ÷ flash frequency = shutter speed
For example, when flash count is set to 10 (times) and flash frequency to 5 (Hz), set the
shutter speed to at least 2 sec.
Caution
To avoid wearing out or damaging flash heads from overheating, do not use
stroboscopic flash repeatedly more than 30 times. After 30 times, stop using the
Speedlite for at least 10 min.
Shooting more than 30 times may activate a safety function and restrict flash firing.
In this case, stop using the Speedlite for at least 40 min.
Note
Stroboscopic flash is most effective for highly reflective subjects against a dark
background.
Using a tripod and remote switch is recommended.
Flash output cannot be set to 1/1 or 1/2.
Stroboscopic flash is also available when the camera is in <
Bulb
(
)> shooting
mode.
A flash count display of “----” indicates that the Speedlite will fire continuously until
the shutter closes or the charge runs out, with the maximum flash count as listed in
Maximum continuous flash count
) is not available with stroboscopic flash.
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