Paul C. Buff, Inc. Technical Forum

I just bought 1 CST, 1 CSRB, 1 B800...and planning to buy another B800 and Nikon SB900. Do I need another CSRB for those? TIA!

it depends on your shooting style and environment. Both the B800 and SB900 have built in slave eyes that will respond to a flash. In many environments, this is sufficient, however in bright sun, or around other photographers, or using large modifiers, or other situations, the slave eye can be blinded or triggered inadvertently. In these cases, additional recievers are recommended.

Thanks, now I'm enlightened ;) I just tested it with my new SB900 and it worked. I just used 1 CSRB connected to the B800...