Wireless Flash Photography: Optical; Optical O1 Secondary Unit Setting; Optical O2 Secondary Unit Setting - Hahnel MODUS 600RT Mode D'emploi

4
Optical Transmission

Optical O1 Secondary Unit Setting

In M manual flash mode, press <O1/O2> button so that
this flash can function as an optical O1 secondary off
camera flash using its optical sensor. With this function,
the flash will fire synchronously when a second main flash
fires on the camera. This is the same effect as usng a
radio trigger to fire the flash off camera. This helps create
multiple lighting effects.

Optical O2 Secondary Unit Setting

In M manual flash mode, press <O1/O2> button so that
this flash can function as an optical O2 secondary off
camera flash using its optical sensor. With this function,
the flash will fire synchronously when a second main flash
fires on the camera as in O1 but it will ignore the metering
pre-flash and fire only in response to the exposure flash
from the main unit.
• O1 and O2 optic triggering is only available in M manual
flash mode when the Modus 600 RT is off camera
• Press function button 4 <
when in 01/02 mode
34
Wireless Flash
Photography:
SYNC
> to activate the "HSS"
Modus 600RT Modus 600RT 35