So why is knowledge about your meter and proper exposure so important anyway? Many will simply let the camera make the decisions and more often than not will be satisfied with the results. Or, they will simply take the picture and use the view screen to determine if the shot worked.
So let me try to explain my position on this in three ways. The first is the ability of the meter to be tricked, the second is something called exposure latitude and the third is creative control.
As I have already explained, meters are calibrated based upon a normal scene. So if you are on snow or over sand or water, they will think more light is present than actually is there and they will under expose. But that is just one example. A meter is simply a tool, which if used in the wrong way it will frequently yield the wrong results. As another example, if strong light sources are in the area being read, the meter readi