-
11
-
High-Speed Sync
In this mode, you can set the flash output from 1/1 full power to 1/32nd
power in 1/10 stop increments.
High Speed Sync enables the flash to synchronize with all camera shutter
speeds. This is convenient when you want to use aperture priority for fill-flash
portraits.
Press the <
MODE
>
1
Button so that < >
is displayed.
Please use the
3
transmitter of
ST-III
series
(optional).
● With high-speed sync, the faster the shutter speed, the shorter the effective flash range.
● Multi flash mode cannot be set in high-speed sync mode.
● With high-speed sync, the color temperature is lower (decrease around 700K) because
of tube’s characteristics. Please set the camera to AWB (Auto White Balance).
Press<
MODE
>button
1
sothat<
Multi
>is
displayed.
speed
Multi
CH
speed
Multi
CH
speed
Multi
CH
Multi: Stroboscopic Flash
-
12
-
3
Calculating the Shutter Speed
During stroboscopic flash, the shutter remains open until the firing stops.
Use the formula below to calculate the shutter speed and set it with the
camera.
For example, if the number of flashes is 10 and the firing frequency is 5 Hz,
the shutter speed should be at least 2 seconds.
Number of Flashes / Flash Frequency = Shutter Speed
In this mode, you can set the flash output from 1/4th power to 1/256th power
in 1 stop increments. With stroboscopic flash, a rapid series of flashes is
fired. It can be used to capture a multiple images of a moving subject in a
single photograph. You can set the firing frequency (number of flashes per
sec. expressed as Hz), the number of flashes, and the flash output.
Multi: Stroboscopic Flash
● Stroboscopic flash is most effective with a highly reflective subject against a dark
background.
● Using a tripod and a remote control is recommended.
● A flash output of 1/1 and 1/2 cannot be set for stroboscopic flash.
● If the number of flashes is displayed as “--”, the firing will continue until the shutter
closes is exhausted. The number of flashes will be limited as shown by the following
table.
M
ulti
CH
M
ulti
CH
