The Nikon SB-900 Speedlight is Nikon's flagship flash unit, and the most advanced in the Speedlight range. As a replacement to the SB-800, the SB-900 shares many of the same functions, but also has some innovative additions and improvements. Its automated zoom head has been expanded to cover 17mm to 200mm lenses (in 35mm/FX format), and can cover this range in just 1.2 seconds. This flash now lets you select from three light distribution patterns: Standard, Center-weighted, and Even. It will also automatically detect if it is connected to a DX or FX format camera, and adjust itself accordingly.
The SB-900 can work as a stand-alone flash, or as part of a wireless group, either in Commander mode or as a slave (remote). The i-TTL system in this flash supports Advanced Wireless Lighting and versatile functions for up to four groups of Speedlights, with 3 remote i-TTL Speedlight groups controlled through the master SB-900. i-TTL Balanced Fill-Flash flash control employs Nikon's Advanced Data Communication system. This system provides an improved method for the monitor pre-flash and wireless operation that marks an evolution in higher precision over Nikon's acclaimed D-TTL Balanced Fill-Flash control system, and forms the core of the Creative Lighting System.
Note: Please note that the SB-900 is only fully compatible with DSLR cameras that support i-TTL operation. With older cameras that use the D-TTL mode, only [A] Auto mode (non-TTL) is available.
|Guide No.||111.5' (33.99 m) ISO100 at 35 mm position|
|Angle of Coverage||
104° - 12°
Wide-Angle Adapter: 122° - 104°
|Vari-Power||1/1 - 1/128|
|Coverage||17 mm - 200 mm (Full frame)|
|Zoom Head||Full frame: 17 mm - 200 mm|
|Off Camera Terminal||Proprietary|
|Recycle Time||Approximately 2.3 - 4.5 seconds|
|Power Source||4x AA Alkaline, Lithium, NiCad, Rechargeable Ni-MH Batteries|
|Dimensions (WxHxD)||3.0 x 5.7 x 4.7" / 7.6 x 14.5 x 11.9 cm|
|Weight||14.6 oz / 414 g|