you need one of these if you are using your elinchrom skyport trigger
then hook up the 600ex with the pc sync cable and run in manual
I've tried this setup and I cannot get the 600EX-RT to work when triggered from my Elinchrom transmitter hooked on my 5DIII hot shoe. I have the following gear:
-Elinchrom Ranger Quadra Hybrid (built-in skyport)
-Elinchrom Transmitter plugged in my 5DIII hot shoe
-FlashZebra female hot shoe to PC adapter/cable
-Elinchrom Receiver plugged to the 600EX-RT via the FlashZebra adapter
My 600EX-RT is in manual mode. Oddly, if I trigger my 600EX-RT on the flash unit directly it then communicates with my Elinchrom ranger quadra hybrid system and all flashes (including the 600EX-RT) trigger together wirelessly. However, if I trigger my flash system via my Elinchrom transmitter or the test flash button on my ranger hybrid, ONLY the Elinchroms fire and not the 600EX-RT.
Why would it only work one way? Any help would be greatly appreciated!
Woohoo! I guess I had to finally post my question after all my searching to finally find the solution: set to ETTL and Group B. Then poof! Elinchrom system can wirelessly trigger my 600EX-RT using a Skyport Receiver and FlashZebra female hot shoe to 3.5mm adapter.
Posted the above solution for any other member who might run into this issue!