can someone identify the problem? images posted

Glad you have it fixed but I'm still confused as I thought the master setting related to IR settings when using that to fire remotely. Since you are using a wireless trigger I'm wondering if one flash isn't being triggered from the other.

Important thing is if you resolved it.

xarqi wrote in post #12269473
My money is on delayed strobe firing, and the solution being to reduce ambient light and use a slower shutter speed (or use wired strobes).

very close guess. i think when i used 2-3 strobes it was not that noticable if the light is even untill i started moving/changing lights and power settings.

RandyMN wrote in post #12269549
Glad you have it fixed but I'm still confused as I thought the master setting related to IR settings when using that to fire remotely. Since you are using a wireless trigger I'm wondering if one flash isn't being triggered from the other.

Important thing is if you resolved it.

every shot i took with master ON had this issues. now if you use 2 lights and balance them out, you will not see the bar. you will only see it if you lower the power on the other flash. edit: by the way Randy im using Yongnuo rf602 trigger.

Okay, I use my 580's through IR only and have main set to master and slaves set accordingly. I don't fire my 580's using the wireless triggers since I use monolights for that.
So I'm not really clear on what would happen if I tried using the 580's with the wireless, but as long as you found your problem I guess it's all good!

Glad you figured it out.

Edit: Sorry I didn't read the last post. I guess all is well now.

I am almost sure it is a syncing problem. I would have suspected your flash at first but after knowing that you used a YNrf-602 triggers which I believe is a Yongnuo and has been getting mixed reviews, I would say it is the culprit. Besides, it is rare that a Canon Speedlights would have syncing problems, but it does happen too. Like one suggested, try to shoot on different speed (slower like 1/125 even 1/100) and see if you get the same result.

Good luck.

Thanks everyone for the help and support.

All's well that ends well!

I have had this happen to me as well but my problem was weak batteries in my 430EX (sync issue). Once it was fully charged, the problem was gone.