by ʇolɐǝz ǝɥʇ qoq

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I'm trying to use my 580EX II as a master and trigger via wireless remote. When not in Master mode, the 580EX II triggers remotely. However, once I put it in Master mode, it no longer works. Thus, I can't setup master/slave.

Here's a photo of the settings of the 2 lights:

Image and video hosting by TinyPic

Any ideas what is wrong? How do I make this work?

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up vote 4 down vote accepted

The 580exII needs to be attached to your camera to be able to trigger things remotely as a master.

If you want to trigger both, you need to have another 580exII, ST-E2 wireless transmitter or use the built in transmitter that comes with the 60D or 7D.

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