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H–15
Tips on Speedlight Care and Reference Information
H
Specifications
Electronic construction
Automatic Insulated Gate Bipolar Transistor (IGBT)
and series circuitry
Guide number (at 35 mm
zoom head position,
in FX format, standard
illumination pattern,
20 °C/68 °F)
28/92 (ISO 100, m/ft.), 39/128 (ISO 200, m/ft.)
Effective fl ash output
distance range (in i-TTL
mode)
0.6 m to 20 m (2 ft. to 66 ft.) (varies depending on
camera’s image area setting, illumination pattern,
ISO sensitivity, zoom head position, and lens
aperture in use)
Illumination pattern
There are three illumination patterns: standard,
even and center-weighted
The light distribution angle is automatically
adjusted to the camera's image area in both FX
and DX formats
Available fl ash mode
i-TTL•
Manual fl ash•
Distance-priority manual fl ash•
Other available
functions
Test fi ring, monitor pre-fl ashes, AF-assist
illumination for multi-point AF, and modeling
illumination
Nikon Creative Lighting
System
A number of fl ash operations are available with
compatible cameras: i-TTL mode, Advanced
Wireless Lighting, FV lock, fl ash color information
communication, auto FP high-speed sync and AF-
assist illumination for multi-point AF
Multiple fl ash-unit
photography operation
Advanced Wireless Lighting•
SU-4 type wireless multiple fl ash-unit •
photography (in remote mode)