600 rt flash question!!

[johnnyfinley]

Friends:
Can anyone help me figure something out with my Canon 600rt flash? With one 600rt on the camera, while I am walking around with another 600rt flash in a room, I want to control the output of the flash I am carrying, but cannot find a way to do it other than going back to the Master flash on the camera to change the output. No way to control a remote flash output from itself? Thanks! Johnny

[johnnyfinley]

Uuugh - So with on 600 on the camera and one 600 in my had both on OPTICAL - sitll no ability to control the SLAVE from the SLAVE unit...

[Skirball]

Using a 600ex-RT in optical almost seems like sacrilege.

Another option would be to get a set of Yongnuo RF-602 triggers (about $20 for a set), and use those to trigger your 600ex-RT.  You could then control power of your 600-ex-RT in hand, but it'd be manual only. 

[johnnyfinley]

Yeah - bummer. I do like the ETTL function for so many other styles of shooting.....

[Skirball]

You could also use the Yongnuo RF-622, which would allow eTTL shooting.  It also has a (eTTL capable) pass through so you could put another 600ex-RT, or your ST3, on the on-camera trigger to do it's own thing.  Though at that point you might as well just get another 622 for your other flash.  But putting Yongnuo triggers on a 600ex-RT also seems like sacrilege.

If it's just an occasional thing, then work with what you have.  But if it's something you're doing routinely, I'd recommend not using workarounds.

[JimmyMc]

I'm sorry for responding to such an old post. Did you find optical the only solution? I've got the same issue. $2000 worth of canon flashes and I cant do this?

JIMMY

[JimmyMc]

Sorry, read this page after. What did you finnally do?