I am shooting w/a D3S and need a commander unit for off camera flashes, SB900s. I was thinking of using the SU800, but then the idea popped in my head, "What about using the SB600". It is a little cheaper and I am only controlling two other flashes, would this work. Does the SB600 have the capability to setup three groups like the SB900?
The SB-600 is an entry level CLS Wireless Remote. It can control 0 groups.
The SB-600 only works as a remote, there are no controls within the SB-600 for 'Commanding' other remotes.
The only Speedlights that can 'Command' remotes are the SB-900/800 and the SU-800. PocketWizard is working on an RF system that will allow a 'Commanding' SB-900/800 or SU-800 be located off the camera like have a long invisible SC-17/28/29 TTL Cord.
The SB-600 does not have a Commander mode. It can only be used as a single On Camera Speedlight or a Remote. Only the SB-900, SB-800, and SU-800 Speedlights can be used as a Speedlight Commander. If you add an SB-600 you can use it as a Remote controlled by one of your SB-900's on camera. Good Luck and Enjoy your Nikons!
> check out radio poppers. they have what you want.
I beg to differ. Radio Poppers don't add anything to the SB-600's ability to control remote flashes. (Which is, as George and Marty said above, non-existent.) Radio Poppers use radio waves to extend the ability of whatever CLS commander one might have to much greater distances and remove the line-of-sight requirement. So if one had an SU-800 or SB-900 controlling a (say) pair of SB-600s, a Radio Popper would permit moving those SB-600's to as far away as 1000 feet or so.
But Radio Poppers won't turn an SB-600 into a commander unit.
_____ Brian... a bicoastal Nikonian and Team Member
My gallery is online. Comments and critique welcomed any time!