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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 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 frontlit.
Below are several examples of the type of illumination available to media operators.
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