X-Y-Z
 

Xenon

A high intensity light, with a polished parabolic reflector. (Lighting)

XLR

One of several varieties of sound connectors having three or more conductors plus an outer shell which shields the connectors and locks the connectors into place. (Sound)

X-Y Pattern

A pair of cardioid microphones or elements aimed in crossed directions which feed two channels for stereo pickup. (Sound)

Y (luminance)

The luminance (brightness) portion of a video signal, especially component video. The formula for deriving & from the red, green, and blue signals is 0.30 R + 0.59 G + 0.11 B.

Y M C Numbers

The 'timing lights' that the negative is printed at, representing the numerical value of the red, blue and green lights used in the printing process. These printing lights are referred to by their complements: yellow, magenta, and cyan.

Y to C delay

Relative delay or timing of the luminance channel compared to the chrominance channel in a video system.

Y, R-Y, B-Y

Color difference signal designation. Y corresponds to the luminance signal, R-Y corresponds to the red minus luminance signal, and B-Y corresponds to the blue minus luminance signal. These signals are derived as follows:

Y, U, V

PAL luminance & color difference components. U and V are the names of the B-Y and R-Y color differences signals (respectively) when they are modulated onto subcarrier.

Zero Cut

A method of preparing A and B rolls for printing in which the original shots overlap several frames or more. The change from one roll to another to match the edited workprint is done automatically by the printer. (Film Editing)

Zoom

An optical effect in which the image rapidly grows larger or smaller as though the camera is moving closer or away from its subject.

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