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Occasional Contributor
Posts: 7
Registered: ‎01-10-2015

Re: 600 rt flash question!!

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...

Respected Contributor
Posts: 1,735
Registered: ‎02-28-2013

Re: 600 rt flash question!!

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. 

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Occasional Contributor
Posts: 7
Registered: ‎01-10-2015

Re: 600 rt flash question!!

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

Respected Contributor
Posts: 1,735
Registered: ‎02-28-2013

Re: 600 rt flash question!!

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.

Occasional Contributor
Posts: 8
Registered: ‎07-23-2018

Re: 600 rt flash question!!

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

Occasional Contributor
Posts: 8
Registered: ‎07-23-2018

Re: 600 rt flash question!!

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

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