Unable to control Power level on SB-900 Flash

I am running firmware NIK.A.005 on my V6 II transceivers and am able to control zoom but unable to control the power level on the Nikon SB-900 flash unit. I ave tried setting the Synch Mode to HSS = Off, HSS=Normal as well as Power Synch however I am having no luck. I am using the Nikon D-750 camera and am aware of the problem with the hot shoe alignment and I have verified the connection by enabling camera controls. I do see the power level change on the VS II RX unit but it is not reflected on the flash unit itself. Any suggestions would be appreciated.



  • Check if you have set the SB-900 to TTL BL mode.
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