The Nissin Di600 Flash is a shoe-mounted flash unit designed for Canon & Nikon cameras with iTTL functionality. It features a guide number of 145' at ISO 100 in the 105mm position for providing excellent coverage within a zoom range of 24 to 105mm, or down to 16mm with the built-in wide-angle diffuser.
For both Canon & Nikon Guide Number : 44m, 145ft. (ISO 100), 62m, 205ft. (ISO 200) Illumination coverage : 24-105mm (16mm wide angle diffuser) Number of flashes : 200-1500 flashes by fresh alkaline batteries Energy saving system : 2 minutes to stand-by mode, 30 minutes to shut down after the power on or the last use of flash unit