The TTL function will not work. I think it will fire full power with your camera. The auto focus assist beam might work. I could not find anything on the trigger voltage. You have to be carful with that when using older flash units. If the trigger voltage is too high it could fry the electronics in your 50D. With the right wireless slave unit you could use it off camera but it is pretty low power flash.


Here is some info: Canon 160E


Mark