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I have a Quantum Radio Slave 4i that misfires when it is hooked up to my off camera flash (canon 580 ExII) AND when it is plugged into my power pack. It doesn't happen all the time, but when it starts it usually misfires a lot of times in a row. Any suggestions?

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Turn off the Pre-flash from the camera /or 580EX 2.

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Posted on Feb 05, 2010

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I can repair it for you or try this first.



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