The Nissin Di466 has been developed for Digital SLR Cameras with the latest TTL flash control technology This model is for 4/3rds fit cameras. This versatile unit features (33m/108ft G/N @ 100 ISO/). Flash exposure compensation is provided in 6 steps by half stop increments of -1.5, -1.0, -0.5, +0.5, +1.0, +1.5 by controlling a switch on the back panel. When on manual power the flash can also be triggered wirelessly. The zoom head diffuser is motorised and will cover a lens range of 16-70mm and also incorporates a fill in reflector and wide angle diffuser. For ease and speed of use the batteries are held in a convenient battery cartridge where the battery contacts are all aligned in one direction.