The Nikon SB-5000 AF Speedlight (2016) remains one of the most advanced hot-shoe flashes ever produced by Nikon. It introduced the world's first built-in active cooling system in a shoe-mount flash — a true milestone that dramatically changed the rules of high-volume, high-power flash photography. With a powerful Guide Number of 34.5 m / 113 ft (35 mm) and 55 m / 180 ft (200 mm) (ISO 100, FX format, standard pattern), combined with an extremely wide 24–200 mm zoom range (extendable to 14 mm with the built-in diffuser panel), the SB-5000 delivers professional-grade output and coverage flexibility.