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BKSTS Illustrated Dictionary of Moving Image Technology, 4th Edition by Martin Uren

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W

walk through: A full rehearsal including camera movements, but without actually filming or recording sound. Also called a dry run or stagger through.

wall sled: A lighting support for a lamp on a scenery flat within a set. (Colloq.)

wand: A hand-held barcode reader.

warble tone: A constant amplitude tone used in audio testing whose frequency varies between set limits, i.e. it is frequency modulated.

warm start: To reboot a system without turning off the power (compare cold start).

wash: A general flood of light covering the setting.

watt (W): SI unit of electrical power, equivalent to producing or expending one joule of energy per second or the power used when one ampere flows through a one ohm resistor. Named after the eighteenth century Scottish ...

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