58
Optic S1 Secondary Unit Setting
In M manual ash mode, press <S1/S2> button so that this ash
can function as an optic S1 secondary ash with optic sensor.
With this function, the ash will re synchronously when the
main ash res, the same effect as that by the use of radio
triggers. This helps create multiple lighting effects.
Optic S2 Secondary Unit Setting
Press <S1/S2> button so that this ash can also function as an
optic S2 secondary ash with optic sensor in M manual ash
mode. This is useful when cameras have pre-ash function.
With this function, the ash will ignore a single “preash” from
the main ash and will only re in response to the second, actual
ash from the main unit.
M: Manual Flash
The ash output is adjustable from 1/1 full power to 1/128th
power in 1/3rd stop increments. To obtain a correct ash
exposure, use a hand-held ash meter to determine the required
ash output.
1
Press < MO DE > button so
thatr < M > is displayed.
2
Turn the Select Dial to
choose a desired ash output
amount.
3
Press < SET > button again
to conrm the setting.
Flash Output Range
The following table makes it easier to see how the stop changes
in terms of f/stop when you increase or decrease the ash
output. For example, when you decrease the ash output to 1/2,
1/2 – 0.3, or 1/2 – 0.7, and then increase the ash output to more
than 1/2, 1/2+0.3, 1/2+0.7, and 1/1 will be displayed.
Figures displayed when reducing ash output level
Figures displayed when increasing ash output level
1/41/2
1/1
1/1-0.3
1/2+0.7
1/1-0.7
1/2+0.3
1/2-0.3
1/4+0.7
1/2-0.7
1/4+0.3
······
······
• S1 and S2 optic triggering is only available in M manual
ash mode.
The flash output is adjustable from 1/1 full power to 1/128th power
in 1/3rd stop increments. To obtain a correct flash exposure, use a
hand-held flash meter to determine the required flash output.
M: Manual Flash
Press < MODE > button so
1 that < M > is displayed.
Turn the Select Dial to choose
2 a desired flash output amount.
Press < SET> button again to
3 confirm the setting.
Figures displayed when reducing flash output level
←Figures displayed when increasing flash output level
1/41/2
1/1
1/1-0.3
1/2+0.7
1/1-0.7
1/2+0.3
1/2-0.3
1/4+0.7
1/2-0.7
1/4+0.3
······
······
Flash Output Range
The following table makes it easier to see how the stop changes in
terms of f/stop when you increase or decrease the flash output. For
example, when you decrease the flash output to 1/2, 1/2-0.3, or 1/2-
0.7, and then increase the flash output to more than 1/2, 1/2+0.3,
1/2+0.7, and 1/1 will be displayed.
Optic S1 Secondary Unit Setting
In M manual flash mode, press <S1/S2> button so that this flash can
function as an optic S1 secondary flash with optic sensor. With this
function, the flash will fire synchronously when the main flash fires,
the same effect as that by the use of radio triggers. This helps create
multiple lighting effects.
Optic S2 Secondary Unit Setting
Press <S1/S2> button so that this flash can also function as an optic
S2 secondary flash with optic sensor in M manual flash mode. This
is useful when cameras have pre-flash function. With this function,
the flash will ignore a single “preflash” from the main flash and will
only fire in response to the second, actual flash from the main unit.
● S1 and S2 optic triggering is only available in M manual
flash mode.
Set the flash frequency and
3 flash times.
● Press < > button to
select the item (blinks).
● Turn the Select Dial to set
the number and press
< > button again to
confirm. The next item to be
set will blink.
● After you finish the setting,
press <SET> button and all
the settings will be
displayed.
Multi: Stroboscopic Flash
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.
Press <MODE> button so
1 that < > is displayed.
Turn the Select Dial to choose
2 a desired flash output.
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
To avoid overheating and deteriorating the flash head, do not
use stroboscopic flash more than 10 times in succession.
After 10 times, allow the camera flash to rest for at least 15
minutes. If you try to use the stroboscopic flash more than 10
times in succession, the firing might stop automatically to
protect the flash head. If this happens, allow at least 15
minutes’ rest for the camera 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.
● Stroboscopic flash can be used with“buLb”.
● If the number of flashes is displayed as “--”, the firing will
continue until the shutter closes or the battery is
exhausted. The number of flashes will be limited as shown
by the following table.
MULTI
MULTI
Hz
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