I've been reading a lot about exposure, light levels, and how colour affects light levels. I understand the basic concepts, but I just don't understand their relationship to each other. So the amount of light (ie. time of the day) and the colour of the object both affect how much you need to adjust the camera's apeture/shutter speed. But how does it all work? Say you've got a brown object in bright sunlight - the camera measures the light reflected off the object. But why does the camera try to brighten the object? Wouldn't it also take into account the fact that the object, being dark, gives off less light? It sounds confusing to me, but basically I'm trying to figure out the "steps" that a camera's light meter takes to determine the correct apeture/shutter.