Nikon SB-900 - Manual (Page 89)

D–39
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Flash modes and functions
Wireless multiple flash shooting
With the SB-900, the “Advanced” and “SU-4 type” wireless flash operations are
available.
The Advanced Wireless Lighting mode is automatically set as the default.
Advanced Wireless Lighting is recommended for standard multiple
flash photography.
SU-4 type wireless multiple flash, set the wireless flash mode to “SU-4” in the
custom setting. (kC-22)
Flash shooting with Advanced Wireless Lighting
Available when the SB-900 is used with CLS-compatible cameras.
Compatible with i-TTL flash mode.
In this mode, you can divide the remote flash units into three groups and set the
flash mode and flash output level compensation values separately for each group.
SU-4 type wireless multiple flash shooting
SU-4 type wireless multiple flash is particularly suitable for shooting fast
moving subjects as both the master flash unit and remote flash units
fire simultaneously.
There are no restrictions as to which cameras can be used.
Speedlight featuring wireless multiple flash capability can be used either as
the master or remote flash unit.
Speedlights compatible with TTL auto flash can be used as the master flash
unit. The optional Wireless Slave Flash Controller SU-4 is necessary when you
want to use these Speedlights as remote flash units.
The camera’s built-in flash can also be used as a master flash unit.
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Master fl ash unit and remote fl ash unit(s)
In this user’s manual, a flash unit mounted on the camera, the camera’s built-in
flash, or the one directly connected to the camera via a TTL Remote Cord is called
the master flash unit. All other flash units are called remote flash units.