The Metz 50 AF-1 shoe-mount flash unit for Canon DSLR units is designed for both current and future DSLR models. This flash unit is designed to be completely compatible with the Canon DSLR camera system. It has a wide angle of coverage, from 84-23 degrees, to allow for versatile usage. The options include bounce head, swivel head, and a zoom head with full frame (24-105mm) capacity. This flash unit uses four AA batteries, making it easy to operate no matter where you may be.