Sb-900 vs sb600 and su-800

[Irie Times]

I am going to add to my flash arsenal, but have a question.

What are opinions on getting a SB-900 or an SB-600 and SU-800 remote?

I currently have 1 SB-600 but want to start doing more remote light placement but cannot figure what the best option is. Whether it would be to have a remote and 2 sb-600's or a sb-600 and a sb-900.



Thanks

[Franglais]

What camera do you have? It sounds like you have a D40/D40x/D50/D60 which cannot work as a Commander to pilot your SB600's, so you need a SB800 or the SB900 to do the job?

[Irie Times]

What camera do you have? It sounds like you have a D40/D40x/D50/D60 which cannot work as a Commander to pilot your SB600's, so you need a SB800 or the SB900 to do the job?

Good point, i didn't even think to look and see if my camera could be a comander unit, it is the D90 and it can.

That being said when adding another flash would there be any advantages with going to a SB900or would another SB600 do the job?

Thanks for your response!