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Preparation
About the SB-500 and This User’s Manual
Terminology
Nikon Creative Lighting System ( CLS): a lighting system that
enables flash photography functions listed below with improved
communication between Nikon Speedlights and cameras
i-TTL flash control/Advanced Wireless Lighting/Modeling flash/
FV lock/Flash (LED Light) Color Information Communication/
Auto FP high-speed sync
Guide number (GN): the amount of light generated by a flash
unit; GN = flash-to-subject distance (mƁorƁft) × aperture f-number
(ISO 100)
Effective flash output distance: flash-to-subject distance with
correctly adjusted flash output
Effective flash output distance range: range of effective flash
output distance
Flash exposure compensation: intentional flash output change
to obtain the desired subject brightness
i-TTL flash control: flash control mode in which the Speedlight
fires monitor pre-flashes and the camera measures the reflected
light and controls the Speedlight flash output
Monitor pre-flashes: a series of flashes emitted for a very
short time before the actual firing that enables the camera to
measure the light reflected on a subject