Photometric data, including beam angles, field angles, foot candles and beam diameters at various throw distances, etc., on over 500 theatrical lighting instruments make this an indispensable reference for lighting designers and electricians.
Photometric data, including beam angles, field angles, foot candles and beam diameters at various throw distances, etc., on over 500 theatrical lighting instruments make this an indispensable reference for lighting designers...
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