This is a good point, and certainly something to consider. If this proves to be the case in the test roll, we're simply going to have to storyboard around such things - keep the light constant. There are moments in our short script where someone turns out a light, so these moments will definitely have to be reworked if the exposure's just going to re-gauge itself. I know what you're thinking, just buy another camera. But things ain't so easy to source down here in Mexico, and we're on a budget of around zero. Plus, the constraints of the medium are a challenge I'd like to overcome. This way when I get a budget I'll be more resourceful.