Lighting has two general functions. The first is base light: the overall illumination of the image. A minimum amount of light is needed for any camera to operate, and more than the minimum is often desirable for proper exposure, depending on the image being recorded. The second function is creative light: lighting in a way that enhances mood and style and reveals shape and texture. Lighting can also enhance perspective and focus attention within the frame.
Many techniques have been developed over the years to create appropriate lighting. At the end of the day, though, lighting is a creative process, and usually there is no one right way to light a set. The techniques serve as a starting point that may then be fine-tuned. ...
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