The Digital Dedicated Autofocus Illuminator is an i TTL flash for Nikon. Its adjustable flash head tilts vertically (0° 90°) and its built in slave mode offers an vital remote flash capability that utilizes indirect illumination that helps eliminate shadows and over saturated subjects. Additional features include red eye reduction, automatic shutter speed setting, second and rear curtain synchronization (for longer shutter speed shooting), an 18 55mm auto zoom range and fast recycling technology. It is powered by 4 AA batteries and comes with a 1 year limited manufacturer"s warranty. Compatible with Nikon D2X/200/3X/40X/50/60/70/80/90/3000/3100/3200/5000/5000/5100/5200/700/7000/7100 DSLR cameras.