Automatic Insulated Gate Bipolar Transistor (IGBT) and series circuitry

34/111.5 (ISO 100, m/ft), 48/157.5 (ISO 200, m/ft)

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

0.6 m to 20 m (2 to 66 ft) (varies depending on camera image area setting, illumination pattern, ISO sensitivity, zoom position, and lens aperture)

TTL, Auto Aperture flash, Non-TTL auto flash, Distance-priority manual flash, Manual flash, Repeating flash

Test firing, monitor pre-flashes, AF-assist illuminator, and Modeling illuminator

Advanced Wireless Lighting, SU-4 type wireless multiple flash

All cameras compatible with Nikon Creative Lighting System (other cameras can be used but functionality is reduced)

Camera’s sync modes: Slow-sync, Red-eye reduction in slow-sync, Rear-curtain sync, Rear-curtain slow-sync
Shooting functions: Auto FP High-Speed sync, FV Lock flash

Flash head tilts down to -7° or up to 90° with click-stops at -7°, 0°, 45°, 60°, 75°, 90°
Flash head rotates horizontally 180° to the left and right with click-stops at 0°, 30°, 60°, 90°, 120°, 150°, 180°

Press the Power ON-OFF switch to turn the SB-900 on or off
Standby function can be set

With fresh batteries (These data may vary depending on battery condition)
Two AA-size penlight batteries (1.5V or lower) of the following types (Batteries : Min. recycle time (approx.) / Min number of flashes / interval between full flash output and ready light on *) :

- Alkaline-manganese (1.5V) : 4.0 sec. / 110 / 4.0-30 sec.
- Lithium (1.5V) : 4.5 sec. / 230 / 4.5-120 sec.
- Oxyride (1.5V) : 3.0 sec. / 125 / 3.0-30 sec.
- Ni-MH (2600 mAh) (rechargeable) (1.2V) : 2.3 sec. / 190 / 2.3-30 sec.

* When firing the Speedlight at full output once every 30 seconds (120 seconds with lithium batteries.)

The SB-900 is fully recycled: Rear ready-light lights up and front light blinks
Insufficient light for correct exposure (in i-TTL, Auto Aperture flash, Non-TTL Auto flash, or Distance-priority manual flash operations): ready-lights and front lights blink after shooting

Approx. 1/880 sec. at full output

Provides secure attachment of SB-900 to camera’s accessory shoe using locking plate and mount pin to prevent accidental detachment.

Approx. 78.0 x146.0 x 118.5 mm (3.0 x 5.7 x 4.7 in.)

Approx. 415 g (14.6 oz.)

Speedlight Stand AS-21, Nikon Diffusion Dome SW-13H, Color Filter Set SJ-900, Color Filter Holder SZ-2, Soft Case SS-900