So I bought the Sigma EF500 DG Super for Sony cameras yesterday, and I've been playing around with it. Many people have problems with underexposing and overexposing, but I don't really have that sort of problem when bouncing flash (what I normally do). But my question is, how will the wireless thing work? What I want to happen is... Have the flash off the camera, sitting somewhere close by. NOT use the camera flash. The only flash I want used is the Sigma. The Sigma automatically fire when the camera takes the picture. I don't want to have to try and press the flash button and the camera shutter button at the same time, yaknow? Is there anyway I can do this? I tried using wireless mode, and setting it aside. But it's not firing, unless I pop up the camera flash. Do I have to change some camera settings? Or what?