The setup...50D, 430EXII, 50 1.8, Av mode. Trying to take some low light, side bounced flash pictures of my daughter. I have the External Flash AF Assist turned "on" through the camera menu. The AF Assist will not emit and the lens can't find focus. I went into a dark room (lights off) and no AF Assist. The thing that really grinds me here, is that I can turn the camera to one of the "auto" like settings and the 430 blows red light out of it all day and focus is achieved. I looked through the 430 manual and the 50D manual and can't find anything.
What am I doing wrong?
Maybe this belongs in the Flash forum, I don't now, but it seems to be related to the camera.