I am using a Canon 20D, and am trying to connect an old Novatron 2010 flash pack to it. We have a hot shoe that fits the camera but it doesn't trigger the lights. But slipping the connector cord into the PC outlet on the camera as opposed to the hot shoe will trigger the flashes. The only problem is that the pictures then are completely overexposed. As far as I can tell, the camera has no way to meter the flash output. The PC outlet isn't a snug connection, it just kind of fits in there and the rubber cover holds the cord in place. My supervisor and I have tried to look online for an actual cord for our camera but we don't know exactly what we need, so it is hard to figure out what we want. I hope I am making sense to someone. Any suggestions will be greatly appreciated.