The Yongnuo YN560 IV looks like a Canon 580EXII, but it's not: it's a simple, single-pin, non-TTL flash suitable for on or off-camera use with a PC sync cable or with the included YN560-TX radio transmitter. The head tilts and swivels, and zooms from 24-105mm coverage. It's compatible with any camera that has a hot shoe, film or digital; the controller is for Canon EOS, but there's no TTL functionality built in, so you should be able to use it on other systems just as effectively.