At its launch in May 2009 the Di 866 was rated by the press as the world’s most powerful Clip On / Hotshoe flash gun. The Nissin Di 866 is the most powerful in the Nissin Range with models compatible with both Nikon & Canon Digital Cameras. Main Technical Features; The Canon model is compatible with Canon Digital SLR Cameras & Powershot Hotshoe Cameras. The Nikon version is compatible with Nikon SLR & Coolpix Hotshoe cameras Guide No. 60 with ISO100 (Metres) at 105mm Fill in / Sub flash GN12 (ISO100- Metres) Power zoom 24-105mm, Fast 3.5 sec recycle time, No. of flashes: 150 at full power, Operates off 4 AA batteries with an auto shut off energy saving device Quick load spare battery magazines available (NFG003BAT) High Speed Synch FP (High frequency pulse). Synchronises to all shutter speeds over 1/250th sec. TTL flash power compensation Built in Wide Angle Diffusor & Catch Lite Reflecto, Manual power ratio with 8 level, External Auto Exposure Sensor.