Nikon D300 User Manual page 761

flash-unit setups for portraiture, interiors, nature, or any
situation where several Speedlights need to work in unison.
You can simply position the flash units where you'd like them
to be and let CLS automatically figure the "correct" exposure,
or you can change the lighting ratios directly from the Custom
Setting Menu > e3 Flash cntrl for built-in flash > Commander
mode menu of your D300(S).
Nikon's Creative Lighting System is world-class in power
and not too difficult to use. The Nikon D300(S) camera
contains everything you need to control a simple or complex
CLS setup. Let's learn how to use it!
How Does the D300(S) Fit into the CLS
Scheme?
In Commander mode, the camera functions as a controller for
multiple Nikon Speedlight flash units. While the
professional-level Nikon D3/D3S/D3X requires the separate
purchase of an Accessory shoe-mounted commander device,
the D300(S) body has full Nikon Creative Lighting System
(CLS) technology built right into the camera.
You can use normal i-TTL flash technology with the
camera's built-in flash or use Commander mode and the
built-in flash to control up to two groups of an unlimited
number of external Nikon Speedlight flash units. Nikon
makes the powerful SB-900 flash unit, along with its slightly
less powerful SB-600 brother and several other smaller
Speedlight units, such as the SB-400 or SB-R200.
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