I'm using a shoe mounted flash on it. Its a cheap $50 flash made by bower. The problem I'm having is that when I try to use the camera in Av mode with the flash attached it keeps dragging the shutter. It keeps giving me 1/2 or 1" exposures indoors and fires the flash. This causes a drag effect when I really don't want that. When I try manual mode or P or Tv it uses the flash fine with out issues. Is it just that its a cheap flash or am I missing a setting somewhere. Ive been using ISO 600-800 for all of the exposures.