Page 14 - EN_SHOOT_WP2_Handbook for Students
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The question we wonder at this point is: how do we know how
much light we have to let into the camera for our sensor to
register the photo correctly? The answer involves several aspects,
technical and compositional. It is in fact the photographer who
will have to decide, depending on the situation, his taste and
design, whether he wants to take a more or less bright or even a
darker or very light photo. In this choice, he/she will have to use a
component of the camera that is called an ‘light meter’.
The light meter is a photoelectric cell that measures the light
present in a scene. It is located inside the camera, but can also
be external to it, as shown in the picture below.
The light meter gives us a time/diaphragm pair that is convenient
to use in order to expose correctly. The measurement it makes
can be of three types:
1.reading the entire area of the frame;
2.reading the central part of the frame only
3.a spot reading, on a small portion of the frame
