#3. "RE: D800 Behavior in Commander Mode with SB-800 in the hotshoe" In response to In response to 2
Ely, Cambridgeshire, GB
As the first response said - the control on the D800 is for the built in flash only - so if you don't deploy the built in flash the settings are not activated. Therefore the SB800 will fire as set i.e in TTL mode.