Can 600EX-RT Be Used As Optical Slave With Elinchrom Like Nikon SB900 In SU-4

[ptortora]

I'm a newbie with Canon and used to use the Nikon SB900 flashes in SU-4 mode which makes them a manual, optical slave that would fire when any studio flash went off.  Im trying to do the same with the Canon RT600EX but can't find a way for them to fire completely independent of the camera / ST-E3 controller.  Any advise would be much appreciated.

[neuroanatomist]

You need an optical slave trigger.

http://www.flashzebra.com/opticalslaves/index.shtml

Many are not compatible with Canon EX Speedlites.  The ones with the green bases at the above link are the ones you want.

[ptortora]

Thank you for the link to the appropriate optical slave and advice.  I shall order a few to keep in my bag.  It's too bad that this great flash can communicate via radio and infrared, but Canon left out a plain vanilla optical trigger.  Go figure.  Thanks again for pointing me in the right direction.

[wickidwombat]

you need one of these if you are using your elinchrom skyport trigger

http://www.ebay.com.au/itm/ELINCHROM-UNIVERSAL-SKYPORT-RECEIVER-/200875414574?pt=LH_DefaultDomain_15&hash=item2ec51b942e

then hook up the 600ex with the pc sync cable and run in manual