The top-of-the-range Speedlite 580EX II is a brilliant addition to any SLR system. A guide number of 58 (m/ISO 100) ensures powerful flash performance for all kinds of applications. An adjustable angle of coverage makes it suitable for use with wide angle lenses up to 14mm, while the flash ensures accurate coverage by auto adjusting to the camera´s sensor size. Despite its high power and short recycling times, the 580EX II maintains a small and lightweight design. Weather seals further ensure improved dust and moisture resistance. Suitable for use with all EOS cameras.