How to use Nikon flashes with new Olympus OMD E-M5

SU-4 mode on the SB-800 is just a built-in basic optical slave trigger. It will trigger of any fully manual lead flash (i.e. no TTL). Just make sure that pre-flash is supressed, otherwise the SB-800 will fire before the shutter opens.

Unlike the SB-800, the SB-600 has no built-in basic optical slave trigger (just an advanced AWL slave mode that is not compatible with Olympus equipment). However, you can fix this by attaching a basic optical slave trigger - this survey gives an overview over suitable (and not suitable) triggers, including tests with the SB-600: http://dpanswers.com/content/optical_flash.php

You should be able to use them off-camera with a cord. I think your TTL remote cord SC-29 will work without modification on an Oly (but still only give you M/AA/GN modes), but if you run into problems, but insulating tape over all the contacts except the edge connector (GND) and centre connector (X-sync).

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– gisle [ See profile/plan for equipment list ]