DFL-005 is a compact and light clip-on flash units specially designed for the new popular Nikon Mirror less Cameras. It supports most of the Manual functions. And there is a unique feature in Manual Mode: The GN No. 33 of the flash unit can be adjusted by adjusting the EV on the Nikon cameras. Guide No. : 33 ISO 200Flash Mode: Manual (Gn No.33 Adjusted by adjustin EV on Cameras) Vertical Rotation Angle : 60/70/90 Degrees Zoom Position : Fixed at 28mmEffective Flash Range : 0.7-19.3m (Quick Flash 0.7-11.1m)Type : On Camera Standard Hot-shoe AF Assist light : Auto turned on in "TTL" modeInternal Power : 2 x AA Alkaline BatteriesWeight : Approx. 100g (Only Flash)