Nikon SB-900 - Manual (Page 111)

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Flash modes and functions
Modeling illuminator function
Press the [Test firing] button and the flash fires repeatedly at a reduced flash output
level. This is useful for checking the illumination and the shadows cast on the
subject before actually taking the picture.
The flash fires as a Modeling illuminator for a maximum of approx. 1.5 seconds.
This function operates only after the ready-light comes on.
Setting the modeling illuminator using the [Test fi ring] button
Set to activate the Modeling illuminator in the custom setting. (kC-22)
When the Modeling illuminator is activated, the modeling illuminator icon
appears on the LCD panel.
Modeling illumination using camera’s depth-of-preview button
When the depth-of-preview button on a camera compatible with the modeling
illumination is pressed, the Modeling illuminator fires. For details, see your camera
user’s manual.
This function can be performed without activating the SB-900’s Modeling
illuminator in the custom setting.
Modeling illuminator in the Advanced Wireless Lighting (kD-43)
When the [Test firing] button on the master flash unit is pressed, the Modeling
illuminator of the highlighted master unit or the remote flash unit group fires at the
set flash output value.
If the master flash unit and grouped remote flash units are not highlighted, the
Modeling illuminator on the master flash unit only fires (except when the master
flash unit’s flash firing is set to cancel.)
When the camera’s depth-of-preview button is pressed, the Modeling
illuminators of the master and all other remote flash units fire at the set flash
output value at the selected mode.
Modeling illuminator in SU-4 type wireless multiple fl ash
operation (kD-50)
Only the Modeling illuminator on the master flash unit fires.
SU-4 remote flash units also fire according to the modeling illumination of the
master flash unit, but these are not Modeling illuminators.
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Do not release the shutter while the Modeling illuminator is fi ring
If you release the shutter while the master flash unit’s Modeling illuminator is
firing, correct exposure cannot be obtained.
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