Nikon D300 User Manual (en)

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Optional Flash Units 
(Speedlights)
The D300 can be used with CLS-compatible flash units.
The Nikon Creative Lighting System (CLS)
Nikon’s advanced Creative Lighting System (CLS) offers improved 
communication between the camera and compatible flash units 
for improved flash photography.  The Creative Lighting System 
supports the following features:
• i-TTL flash control: Improved through-the-lens (TTL) flash control 
for use with CLS (see page 170).  Flash level is set using monitor 
pre-flashes to measure the light reflected by the subject, 
ensuring that the level is adjusted appropriately for ambient 
lighting.
• Advanced Wireless Lighting: Allows i-TTL flash control with remote 
wireless flash units.
• FV lock (pg. 178): Locks flash level at the metered value, allowing a 
series of photographs to be taken at the same flash level.
• Auto FP High-Speed Sync (pg. 289): Allows the flash to be used at the 
highest shutter speed supported by the camera, making it 
possible to choose the maximum aperture for reduced depth of 
field.