|Do you depend on your camera meter?
Most people do. The real question should be, can you depend on your
camera meter. In most cases you can. But there are situations that arise
where you canít depend on it. One such situation is a scene that
contains a lot of bright whites such a snow scene. If you depend on your
camera to meter this scene then your picture will be underexposed.
Thatís because your cameras meter will try to make everything a middle
tone of 18% reflectance. Like that of a gray card. Obviously, snow
reflects much more light then a gray card so your camera will
underexpose the shot.
If its a sunny bluebird day then you donít need to meter the scene. All
you have to do is use the Sunny 16 rule. Here is how to do it. Set your
camera to manual mode and set your aperture to f16. Now set your shutter
speed to the reciprocal of your film speed. If you are using asa 100
then set your shutter speed to 1/100 of a second or the nearest
equivalent. In some cases 1/125. Now compose the shot and you should get
an excellent exposure. This assumes you are not using any filtration. If
you are, you will have to compensate accordingly.
Lets say you donít want to use f16 because you want extreme depth
of field. Just put your aperture where you want it and
adjust your shutter speed to give you an equivalent
exposure. If you were to use f22 then your shutter speed
would be set to 1/50 or the nearest setting your camera