Nikon has reimagined both on- and off-camera lighting with the SB-5000 AF Speedlight, which brings revolutionary radio control to the Creative Lighting System with Advanced Wireless Lighting and comes equipped with a world's first shoe-mounted flash cooling system that enables up to 100 consecutive full-power flashes. These features alone are enough to put it at the top of the speedlight heap, but the SB-5000 doesn't rest and provides a powerful guide number of 113' at ISO 100 and 35mm while also shrinking in overall size compared to its predecessors.
The SB-5000 AF Speedlight is fully compatible with Nikon's i-TTL automatic exposure system found in a majority of their cameras for fast, accurate operation. Along with this, the radio control implemented in the SB-5000 requires a compatible DSLR using the WR-A10 Wireless Remote Adapter and WR-R10 Wireless Remote Controller in order to fully realize the power of the system. This enables the camera and flash to wirelessly control up to 6 groups of flashes from up to 98' away, without requiring any line of sight. Also, the SB-5000 and the radio system are fully compatible with the existing optical triggering method of older units and can even be mixed and matched for maximum versatility.
Note: 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.