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.
|Angle of Coverage||
|Vari-Power||1/1 to 1/128th|
|TTL Dedication||Yes (only supports i-TTL)|
17 to 200mm (FX-format, Automatic mode)
12 to 200mm (DX-format, Automatic mode)
12 to 17mm (FX-format, Automatic mode with built-in wide-angle panel deployed)
8 to 11mm (DX-format, Automatic mode with built-in wide-angle panel deployed)
In 35mm format (FX format):
|Off Camera Terminal||Nikon Type PC Terminal (SC-15 or SC-11), & TTL Terminal (SC-19 or SC-18)|
|Power Source||Four 1.5-Volt "AA" batteries; alkaline, lithium, NiCad or NiMh|
|Dimensions||3 x 5.7 x 4.7" (78 x 146 x 119mm)|
|Weight||14.6 oz (415g)|