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Tech Specs

  • Guide Number

    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)
  • Lens Coverage

    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)
  • Bounce Function (Tilt)

    Bounce Function (Tilt)

    Flash head tilts down to -7° or up to 90° with click-stops at -7°, 0°, 45°, 60°, 75°, 90°.
  • Bounce Function (Rotate)

    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°
  • Approx. Dimensions (Width x Height x Depth)

    Approx. Dimensions (Width x Height x Depth)

    3 in.78 mm x 5.7 in.146 mm x 4.7 in.118.5 mm
  • Approx. Weight (Without Batteries)

    Approx. Weight (Without Batteries)

    14.6 oz.415 g
  • Commander Function
    Yes
  • Remote Function
    Yes
  • Guide Number for Filter
    111.5ft.
  • 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)
  • Electronic Construction
    Automatic Insulated Gate Bipolar Transistor (IGBT) and series circuitry
  • 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)
  • 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)
  • 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
  • Other Available Functions
    Test Firing, Monitor Pre-flashes, AF-assist illuminator, Modeling illuminator
  • Bounce Function (Tilt)
    Flash head tilts down to -7° or up to 90° with click-stops at -7°, 0°, 45°, 60°, 75°, 90°.
  • 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°
  • 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
  • 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
  • Power ON/OFF
    Rotate the Power ON/OFF switch to turn the SB-900 on or off.
  • 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
  • Optional Power Supply
    SK-6 Power Bracket Unit, SD-8A High-Performance Battery Pack, SD-9 High-Performance Battery Pack
  • 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.
  • Ready Light
    Front, Back
  • 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
  • Custom Setting
    AF-Assist Illumination, Modeling Illuminator, Monitor pre-flashes, Test firing
  • 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)
  • Wireless Flash Modes
    Master, Master (RPT), Off, Remote, SU-4
  • Wireless Communication Channels
    Four: 1, 2, 3 and 4 ChannelsFour: 1, 2, 3 and 4
  • Wireless Groups
    Three: A, B and C
  • 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
  • Approx. Dimensions (Width x Height x Depth)
    3 in.78 mm x 5.7 in.146 mm x 4.7 in.118.5 mm
  • Approx. Weight (Without Batteries)
    14.6 oz.415 g

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