User Manual
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Press the <MENU> button to enter C.FN-F2 to choose S2 function, 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.
Optic S1 Secondary Unit Setting
In M manual flash mode, press the <MENU> button to enter C.FN-F2 to choose S1 function, 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
● S1 and S2 optic triggering is only available in M manual flash mode.
Display Flash Duration
Flash duration refers to the length of time that from flash’s firing to reach the half peak at maximum. The half peak
at maximum is usually expressed as t=0.5. In order to provide the photographer with more concrete data, this
product adopts t=0.1. The difference between t=0.5 and t=0.1 is shown in the following picture.
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 that
1 <MULTI> is displayed.
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.
Number of Flashes / Flash Frequency = Shutter Speed
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.
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.
Maximum Stroboscopic Flashes:
1
7
14
30
60
90
2
6
14
30
60
90
3
5
12
30
60
90
4
4
10
20
50
80
5
4
8
20
50
80
6-7
3
6
20
40
70
8-9
3
5
10
30
60
Flash
Output
Hz
10
2
4
8
20
50
11
2
4
8
20
40
12-14
2
4
8
20
40
15-19
2
4
8
18
35
20-50
2
4
8
16
30
60-99
2
4
8
12
20
Flash Mode — Multi: Stroboscopic Flash
Display Flash Duration Operation
1. Press the <MENU> button to enter C.FN
function.
2. Adjust the Select Dial to F6, the t0.1 icon
will be displayed on the AV panel.
3. Press <SET> button to enter the
adjustment condition.
4. Turn the Select Dial to choose the
ON/OFF.
● The flash duration will only be displayed on the AV panel in M mode.
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A
t
50%
10%
t=0.5
t=0.1
Turn the Select Dial to choose
2 a desired flash output.
Set the flash frequency and flash
3 times.
● Press < SET > button to select the
flash frequency. Turn the Select Dial to
set the number.
● Press < SET > button to select the
flash times. Turn the Select Dial to set
the number.
● After finish the setting, press <SET>
button and all the settings will be
displayed.
StableColorTemperatureFunction
When use this function, the color temperature
changes within ±100K over the entire power
range: enter MENU C.Fn-08 and set it as ON,
which means the color temperature function is
turned on. When adjusting the power output from
high to low in M mode, Flash Ready Indicator will
blink (the beeper will alarm for 1 minute). Now
press the Test Button to discharge, and the flash
can be used as normal.
1/4
1/8
1/16
1/32
1/64
1/128
1/256
90 90 90 90 90 90 80 70 70 60 50 40 40
t0 1
sec
min
Hz
MK
12
c
©
t0 1
sec
min
Hz
MK
12
c
● This function can only be supported in M non-high-speed mode.
t0 1
Hz
t0 1
sec
min
Hz
MK
12
c
sec
min
Hz
c
t0 1
sec
min
Hz
MK
12
c