Please could anyone offer advice on how to set up a D600 with PocketWizards/SB910? I have attempted this but am seeing banding above 1/80th second in my images, and assume I am doing something incredibly stupid.
D600 with 1.01 firmware. PW Mini TT1, upgraded to latest firmware (to support D600). PW Flex TT5, upgraded to latest firmware. SB-910 mounted in softbox.
Flash is set on manual mode, 1/8 power and disply shows M FP in top left hand corner.
Everything turned on in recommended order i.e. SB-910 -> Flex -> Mini -> D600.
Now, if I take a picture of the soft box at ISO 100, 1/80 second shutter and f/2.8 I see a nice white softbox. Moving to 1/100 shutter, only the top third of the image is illuminated by the flash. At 1/125 second (or higher), the front fabric of the soft box is dark.
I have missed an important setting somewhere, can anyone suggest what it is? Thanks.