| Electronic construction |
Automatic Insulated Gate Bipolar Transistor (IGBT) and series circuitry |
| Guide number (20°C/68°F) |
34/111.5 (ISO 100, m/ft), 48/157.5 (ISO 200, m/ft) |
| Illumination pattern |
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 |
| Flash shooting distance range |
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) |
| Flash mode |
TTL, Auto Aperture flash, Non-TTL auto flash, Distance-priority manual flash, Manual flash, Repeating flash |
| Other functions |
Test firing, monitor pre-flashes, AF-assist illuminator, and Modeling illuminator |
| Multiple flash operation |
Advanced Wireless Lighting, SU-4 type wireless multiple flash |
| Compatible cameras |
All cameras compatible with Nikon Creative Lighting System (other cameras can be used but functionality is reduced) |
| Flash exposure control set on the camera |
Camera’s sync modes: Slow-sync, Red-eye reduction in slow-sync, Rear-curtain sync, Rear-curtain slow-sync |
| Bounce capability |
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° |
| Power source |
Four AA-size alkaline-manganese (1.5V), lithium (1.5V), Oxyride (1.5V) or Ni-MH (2600 mAh) (rechargeable) (1.2V) batteries |
| Ready light |
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 |
| Flash duration |
Approx. 1/880 sec. at full output |
| Mounting foot lock lever |
Provides secure attachment of SB-900 to camera’s accessory shoe using locking plate and mount pin to prevent accidental detachment. |
| Dimensions (W x H x D) |
Approx. 78.0 x146.0 x 118.5 mm (3.0 x 5.7 x 4.7 in.) |
| Weight (without batteries) |
Approx. 415 g (14.6 oz.) |
| Supplied accessories |
Speedlight Stand AS-21, Nikon Diffusion Dome SW-13H, Color Filter Set SJ-900, Color Filter Holder SZ-2, Soft Case SS-900 |
