Nikon SB-5000 Reference Manual page 88

Direct
remote
wireless
multiple
flash-unit
photography
* Use only 1 channel from among these. Remote flash units can be triggered by other
master flash units. Use a different channel number if another photographer is using
the same type of wireless remote flash setup close by.
v
Notes on canceling the master flash unit flash function
With optical control, when the master flash unit flash function is canceled
and only the remote flash units fire, the master flash unit emits a number
D
of weak light signals to trigger the remote flash units. This operation will
normally not affect the correct exposure of the subject, although the
exposure might be affected if the subject is close and a high ISO sensitivity
has been set. To limit this effect, tilt the master flash unit's flash head
upward.
D-8
Flash mode
Flash exposure
compensation
When used in
master mode
–
–
When used in
remote mode
• AUTO (auto)
• M (manual)
• OFF (flash function
canceled)
–