The Sunpak DF3600U Universal Flash for Canon and Nikon is the ideal accessory for today’s digital SLR cameras. The DF3600U is designed to use 1 flash for both Canon and Nikon DSLR and HDSLR cameras. It has many advanced features, such as automatic zoom head from 28 mm to 180 mm, built-in wide angle panel and bounce card, as well as a built-in slave for Canon and Nikon systems. It also has an easy-to-use LCD panel. In low light, the AF assist makes sure you don’t miss the shot. Other features include guide number of 120 @ ISO 100, metal hot shoe, built-in sync port, and high-speed sync.