The automated zoom head covers 17mm to 200mm lenses (in 35mm/FX format), and can cover this range in just 1.2 seconds. This flash 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-910 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-910. 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--it forms the core of the Creative Lighting System.
Note! Please note that the SB-910 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.