Nikon autofocus speedlight SB-900 User Manual page 46

Custom functions and settings
C
C–24
ISO sensitivity (kD-60)
Setting ISO sensitivity. ISO sensitivity range is ISO 3 to 8000.
100: ISO 100
Ready-light setting on remote fl ash units (kD-42)
Select the setting of ready-light on remote fl ash unit/s in multiple
fl ash shooting for low battery power consumption.
REAR, FRONT: Front (at remote setting) and rear ready-lights on
REAR: Rear ready-light on
FRONT: Front ready-light on (at remote setting)
LCD panel illuminator (kF-9)
Setting the LCD panel illuminator to turn on or off
ON: Turn on
OFF: Turn off
Thermal Cut-out (kF-6)
Setting the Thermal Cut-out function on or off
ON: Thermal Cut-out on
OFF: Thermal Cut-out off
Sound monitor (kD-42, F-6)
When the SB-900 is used as a wireless remote fl ash unit, or the
overheat detection is on, the sound monitor function can be
activated or cancelled.
ON: Sound on
OFF: Sound off