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Commander Function
Yes
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Remote Function
Yes
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Guide Number
34 m/111.5 ft. (at ISO 100, 35mm zoom head position, in FX format, standard illumination pattern, 20°C/68°F) to 48 m/157.5 ft. (at ISO 200, 35mm zoom head position, in FX format, standard illumination pattern, 20°C/68°F)
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Electronic Construction
Automatic Insulated Gate Bipolar Transistor (IGBT) and series circuitry
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Flash Exposure Control
Distance-priority manual flash
i-TTL Balanced Fill-Flash with CLS compatible cameras
Manual Flash (with Nikon Creative Lighting System digital and 35mm SLR cameras)
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Lens Coverage
8 to 11mm (DX-format, Automatic mode with built-in wide-angle panel deployed)
12 to 17mm (FX-format, Automatic mode with built-in wide-angle panel deployed)
12 to 200mm (DX-format, Automatic mode)
17 to 200mm (FX-format, Automatic mode)
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Illumination pattern
The light distribution angle is automatically adjusted to the camera's image area in both FX and DX formats
Standard
Even
Center-weighted
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Other Available Functions
Test Firing
Monitor Pre-flashes
AF-assist illuminator
Modeling illuminator
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Bounce Function (Tilt)
Flash head tilts down to -7° or up to 90° with click-stops at -7°, 0°, 45°, 60°, 75°, 90°.
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Bounce Function (Rotate)
Flash head rotates horizontally 180° to the left and right with click-stops at 0°, 30°, 60°, 75°, 90°, 120°, 150°, 180°
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Minimum Recycling Time
2.3 sec. (approx.) with Ni-MH (2600 mAh) batteries
3.0 sec. (approx.) with Oxyride™ (1.5V) batteries
4.0 sec. (approx.) with Alkaline-manganese (1.5V) batteries
4.5 sec. (approx.) with Lithium (1.5V) batteries
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Flash Duration
1/880 sec. at M 1/1 (full) output
1/1100 sec. at M 1/2 output
1/2550 sec. at M 1/4 output
1/5000 sec. at M 1/8 output
1/10000 sec. at M 1/16 output
1/20000 sec. at M 1/32 output
1/35700 sec. at M 1/64 output
1/38500 sec. at M 1/128 output
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Power ON/OFF
Rotate the Power ON/OFF switch to turn the SB-900 on or off.
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Required Power Source
Four 1.2V Ni-MH (AA-size) batteries
Four 1.5V Alkaline-manganese (AA-size) batteries
Four 1.5V Lithium (AA-size) batteries
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Optional Power Supply
SK-6 Power Bracket Unit
SD-8A High-Performance Battery Pack
SD-9 High-Performance Battery Pack
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Flash-ready Indicator
Rear and Front lights blink: Insufficient light for correct exposure (in i-TTL, Auto Aperture flash, Non-TTL Auto flash, or Distance-priority manual flash operations).
Rear lights up and Front blinks: recycled and ready to fire.
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Ready Light
Front
Back
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Flash Compensation
–3.0 EV to +3.0 EV in increments of 1/3 steps in i-TTL auto flash, Auto Aperture flash, Non-TTL auto flash and Distance-priority manual flash modes
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Custom Setting
AF-Assist Illumination
Modeling Illuminator
Monitor pre-flashes
Test firing
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Minimum Number of Flashes / Recycling Time
110/4.0 – 30 sec. (1.5V Alkaline-manganese)
125/3.0 –30 sec. (1.5V Oxyride™)
165/2.3–30 sec. (Ni-MH (eneloop))
190/2.3–30 sec. (2600mAh Ni-MH)
230/4.5–120 sec. (1.5V Lithium)
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Wireless Flash Modes
Master
Master (RPT)
Off
Remote
SU-4
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Wireless Communication Channels
Four: 1, 2, 3 and 4 Channels
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Wireless Groups
Three: A, B and C
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Other Functions
Firmware update
ISO sensitivity setting
Key lock
Recalling the underexposure value in the TTL auto flash mode
Resetting the settings
Thermal cut-out
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Dimensions
3.0 x 5.7 x 4.7 in. (78.0 x 146.0 x 118.5mm) (Approx.)
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Weight (Approx. without batteries)
14.6 oz. (415g)
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Supplied Accessories
- AS-21 Speedlight Stand
- SW-13H Diffusion Dome
- SJ-900 Color Filter Set
- SZ-2 Color Filter Holder
- SS-900 Soft Case
*Supplied accessories may differ depending on country or area.
