Hi All,

I'm using a Nikon camera and SB-28 attached via Nikon (3 core!) SC-27 flash cord to a Nikon SC-28 extension cord and back to the hotshoe - having the same problem and the flash connected via the 3 core SC-27 cable wakes on first frame and fires on the second if the flash is allowed to sleep.

So although I have three core cable it appears to carry the Ground, X-Sync and Data but not the Handshake, does that sound correct? It appears there is a way to rewire a Nikon AS-10 as documented here http://www.emmanuelrondeau.com/publi...r-camera-trap/ but that talks about making a connection to a canon camera not Nikon, so I think there is a need to isolate one of the pins at the Nikon camera with electrical tape if using the SC-27 as a final connection back to camera?

In the scenario you describe does the last flash still use the X-Sync to fire the flash?

Thanks