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PHOTOMETRICS HANDBOOK, 2nd Edition
By Robert C. Mumm
index, charts, photos
Dozens of newly manufactured lighting instruments, and many old ones not included in the first edition, bring this second edition up to date. Photometric data-beam angles, field angles, footcandles and beam diameters at various throw distances, etc.-on over 500 theatrical lighting instruments make this an indispensable reference for lighting designers and electricians.