Nissin Speedlite i40 Available for: Fujifilm Canon Nikon Sony Focal length range coverage of 24-105mm?Powerful output?Soft box The Nissin i40 has a flash output of GN40 at 105mm. The zoom range auto adjusts from 24mm- 105mm. The flash comes equipped with a built-in diffuser that gives a 16mm lens coverage. A Soft box is included for soften light output and reduce the shadows. Professional flash head design The flash head rotates horizontally 180° to right and left and tilts up 90°which is suitable for close up photography. This makes bounce shooting more arbitrary, with more angles that can be used. LED Video light Nissin i40 has a video light function, which has 9 steps of output level adjustment. Various Functions (1)Supports high-speed synchronization Supports up to 1/8,000 seconds shutter speed. (*2) (2)Wireless TTL mode Supports Canon E-TTL/ E-TTL II, Nikon i-TTL and Sony ADI/ P-TTL. Various slave settings offer flexible wireless flash combination. Selector dial?Simply operation panel Nissin i40 has two selector dials controls : Function dial and Power dial. The Indicated lamp A/B/C will show the position of adjustment. Even beginners can quickly get started. Four size-AA batteries 4 AA batteries to operate the i40, it can reduce the frequency of changing the batteries and reduce the recycling time. Metal hotshoe ?Quick release button Durable metal hotshot design with quick release button, easy to install and reduce the chance of damage caused by installation. http://www.nissindigital.com