That's a custom function button, first appeared on the D2H, it can do things like cut off flash connection.b18 said:If that is a PS job .. I wonder what's the button below the DOF preview :think: :bsmilie:
On the D2X, it has one more function, activate high speed crop by pressing + turn dial.
It's programmable, if the D200 comes with it, you'll love it. Can switch off the flash connection without having to manually switch off the flash and forget to switch it back on!!!!! :angry: