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4 Introduction to Lighting Intensity
Light intensity (also referred to as brightness, or luminance) is measured in Lumens. As light travels from its source, each doubling of distance results in a fourfold reduction of light intensity. This is known as the Inverse Square Law. This is an especially important consideration when choosing the power (Wattage) of lamps when lighting large areas.
The nature of the inverse square law of light can be exploited in two ways. Soft, yet dramatic modelling light with lots of highlights and shadows can be achieved by bringing . . .
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