Nikon SB-5000 Reference Manual

A-8
Preparation
A
En-01
■ FX format/DX format
Nikon digital SLR camera image area types (FX format: 36 × 24, DX format:
24 × 16)
■ Guide number (GN)
The amount of light generated by a flash unit; as the number increases,
the light extends further. There is a relation represented by an equation,
GN = flash-to-subject distance (m or ft) × aperture f-number (ISO 100).
■ Step
A unit of the shutter speed or aperture change; a change of 1 step halves/
doubles the amount of light entering the camera
■ EV (Exposure Value)
Each increment of 1 in exposure value corresponds to a 1-step change in
exposure, which is made by halving/doubling shutter speed or aperture.
An aperture of f/1.4 and a shutter speed of 1 second correspond to EV 1
which provides correct exposure or proper brightness of the subject. As
the exposure value increases, the exposure of the film or imaging device
increases.
■ Front-curtain sync/rear-curtain sync
In front-curtain sync, the flash fires immediately after the front curtain
is fully open; the subject frozen by the flash appears behind the blurred
movement. In rear-curtain sync, the flash fires moments before the rear
curtain starts to close; the blur of a moving subject appears behind the
subject and not in front, creating natural pictures.

Nikon SB-5000 Specifications

General

Type	-
Product color	Black
Flash coverage	24 - 200 mm
Flash guide number	55 m
Wireless connection	Yes
Approximate recycling time	2.6 s
Brand specific flash systems	i-TTL (Nikon)
Battery type	AA
Number of batteries supported	4

Weight and Dimensions

Depth	137 mm
Width	73 mm
Height	103.5 mm
Weight	420 g