I can't answer for Weasel, but I know that in the settings of my EZ740 I can change the way it meters light. Another trick is to meter on something away that does not have the bright source of light behind it and get a the dummy mode settings if you can. Then set your camera to manual mode and fix the aperature value and shutter speed, exposure comp, and film speed. My camera lets me choose between multi-pattern, and two others that I can't recall.