The Nikon SB-500 AF Speedlight 4814 is a compactly designed portable unit compatible with Nikon's i-TTL metering. It offers coverage for a 24 mm lens with full frame cameras and comes with a guide number of 79' at ISO 100. The powerful LED light offers three output levels of quarter, half or full power, which can be optimized for both video and close up still photography. This unit is ideal for excellent bounce and swivel capabilities with the ability to tilt upward by 90° and rotate left and right by 180°, thus making a complete 360° coverage. Moreover, it also functions wirelessly as a commander unit or as a remote slave with other units, cameras, and wireless flash controllers.