Spot lights provide a hard-edge beam of light which can be tightly controlled. The are available in various wattage lamps from 500w to 10 kilowatts, some even 20 kilowatts.
They are ideal for confining light to certain objects on the set. They can project patterns with the use of gobos (steel slide frames).
If the spot light has shutters, the shape of the beam can be varied (EG: Make square) or if the fitting has an iris the beam size can be altered.
Usually, the beam is focused via the controls on the lens. This light is an ideal key light.
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