User's Manual

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←Figures displayed when increasing flash output level
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.
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.
1. Press <MODE> button so that <MULTI> is displayed.
2. Turn the Select Dial to choose a desired flash output.
3. Set the flash frequency and flash times.
● Press Function Button 3 < > button to select the flash times. Turn the Select Dial
to set the number.
 S1 and S2 optic triggering is only available in M manual flash mode.