I always have such a hard time with flashes and compatibility!
I have a YN600EX-RT and a YN 560IV
When I only had the 560IV I would use a yongnuo RF603C II transmitter to trigger the flash off camera.
I bought the 600ex and now I want to trigger them both off camera.
Honestly I have no idea about groups and all the other confusing things that come with flash photography.
I just want them both to fire at the same time!
I have a VERY hard time finding any website that in a clear and concise manner explains these things.
You guys have always been so helpful I figured I would ask the question.
With the 2 flashes I mentioned and with or without the RF603CII is there a way to make my 2 flashes flash together off camera?
I won't be offended if you talk to me like I'm 5.