Nikon SB-5000 AF SpeedlightNikon 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