Mixing Strobes and Speedlites

kiwi86

Senior Member
I have Bowens 400 Rx and i wish to use together with Nikon sb910. Option sb 910 on the camera does not interest me. Bowens have built in radio. I need receiver. Which?The last option would probably be SC-29?
 

Fred Kingston

Senior Member
Doesn't the Bowens have an optical slave mode? Anything that triggers the SB-910 will work. The SB-910 will fire the Bowen's optical slave...
 

WayneF

Senior Member
And the Bowens will trigger the SB-910. Another receiver seems unnecessary, since the SB-910 mode SU-4 is a conventional optical slave, using the sensor on the side of the SB-910, near the battery door. Its sensitivity is very high, it should trigger in any position if indoors.
 

kiwi86

Senior Member
Su-4? I will need to read some manual ;) It is necessary to open a pop-up flash?
What about problems with the signal if I have hidden flash
 

WayneF

Senior Member
No, no popup involved. SU-4 is just a mode, an optical slave. It is not in the TTL/Manual mode menu, but is sort of standalone mode like Remote for Commander is standalone (not in TTL/Manual menu).

Just put it in SU-4 mode, and set a SU-4 manual power level, and just set it out there. SU-4 mode is an optical slave trigger that will trigger in sync, same as any studio light works with their optical slave trigger.

Commander has issues triggering a hidden flash, but a Commander slave is triggered with the lowest possible power level of flash (to leave something for the next working flash).

SU-4 mode is a less complex trigger (any simple flash, instead of binary encoded data stream), and it is triggered from the full working power of the other flashes involved (your Bowen). It easily works without concern about positioning its sensor in any normal room I've used it in. If extreme distance (like 100 feet), you probably have to aim the sensor at the trigger. If greater distance, I suppose some issue could be possible? But in any normal portrait setup, it has always worked great in every case in any normal room, without concern. There is enough wall reflections to easily handle it.
 
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kiwi86

Senior Member
thank you

Here's how I set


Speedlight
settings
-Su-4
- switch to REMOTE and M


camera
-flash cntrl for built in flash: MANUAL




No popup involved?
If I pick up a pop up flash works. If not then nothing.
 

WayneF

Senior Member
Speedlight
settings
-Su-4
- switch to REMOTE and M

Right. Then just set it out there in SU-4 mode, and then it triggers in sync from seeing any other (manual) flash.

camera
-flash cntrl for built in flash: MANUAL

This camera menu is only about the internal pop up flash. It is totally ignored if the popup door is shut. The external flash has its own menu.

No popup involved?
If I pick up a pop up flash works. If not then nothing.

You need some other flash to trigger SU-4 mode optical trigger. It can be the camera internal flash, or it can be your Bowens studio light. The trigger has to be a manual flash, TTL mode preflash will false trigger it too early, before shutter is open.
 
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