The illumination refers to the type of lighting both structurally and the range of time when the frame is illuminated. Illumination encompasses both sunlight and artificially artificial lighting. The illumination start and end time indicates indicate the hour/minutes/seconds when a frame is illuminated. While the illumination type name indicates if it is naturally or artificially illuminated.
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There are four types of illuminations. Each one refers to a specific type of lighting which that allows for the frame and subsequently the face to be seen.
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There are multiple ways a frame can be illuminated. If a frame is non-digital and has light features as illustrated in the first rexample example below then this location has both artificial and natural lighting. The media operator will then need to indicate the hours of illumination which will include a start time and an end time. As well as the illumination type which in this case would be frontlitfront-lit.
Below are several examples of the type of illumination available to media operators.
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To understand the different type types of illuminations as well as the times in which frames can be seen by audiences passing the frame.