Streaklight 360 ws ( or Atom 360, etc. ) doesn't trigger canon speedlight optically?

by Emil   Last Updated January 13, 2018 00:18 AM

So, I've just purchased the Streaklight 360 Ws for canon which I can trigger with a R2 Integrated Wireless system ( I trigger the flash with a transmitter that came with it ).

It works perfectly, but the thing is that I also have a Canon Speedlite 580EX II which I would like to use along with the Streaklight 360.

I figured I could just trigger it optically with the flash from the Streaklight 360, but it seems it won't respond to the flash. It works perfectly with the build-in popup flash on the camera.

So my question is, why won't the Canon Speedlite 580EX II trigger optically with the flash from the Streaklight 360 Ws? Am I missing something?

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