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G


Gaffer: The chief lighting technician for a production who is in charge of the electrical department.

Gain:
The ratio of the signal level at the output of an audio device to the signal level at its input. Expressed in decibels (db).

Gamma:
The degree of contrast in a negative or print.

Gang Synchronizer:
A synchronizing device having more than One sprocketted wheel which is used to set up synchronized relationships between film and sound tracks which have been recorded to magnetic film. (Film Editing)

Gate:
The aperture assembly at which the film is exposed in a camera, printer, or projector.

Gigabyte (GH):
A unit for measuring computer memory capacity, equivalent to 1,000 megabytes (MB).

Gobo:
A grip head or "C" stand head used as a clamping device for holding other equipment. (Grip)

Grading:
The process of selecting the printing values for color and density fo successive scenes in a complete film to produce the desire visual effects. (Laboratory)

Grifflon (Griff):
A durable material made of three ply high density rubber. The material is attached within a frame and used as either a soft reflector of sunlight or cut or soften direct sun. It generally comes in three sizes: 6' X 6', 12' x 12', and 20' x 20'. (Grip/Lighting)

Grip Tape:
This is Duct tape style tape, also known as gaffer's tape or cloth tape. (Grip)

Guillotine Splicer:
A device used for butt splicing film with splicing film. (Film Editing)

 

H

Handle: An extra number of frames attached to the head and tail of an optical print as a safety precaution. (Laboratory)

Hard Disk:
A data storage and retrieval device consisting of a disk drive and one or more permanently installed disks. Increasingly common for storing sound effects and archiving for future use.

Harmonic Distortion:
Acoustic distortion characterized by unwanted changes between input and output at a given frequency. (Acoustics)

Hazeltine:
A machine which a color time at a lab or optical house uses to determine how to 'time' a film print for the proper amounts of red, blue, and green light. Also called a color analyzer. (Laboratory)

Hertz (Hz):
Unit for measuring frequency of d signal; formerly called "cycles per second."

Hi-Con:
Generally a high contrast film print which provides the maximum contrast between the light and dark elements. (Laboratory)

Highboy:
A heavy-duty rolling stand, usually with a combo head, that has a junior receiver and a large grip head. Also called Overhead Stands. (Grip/Lighting)

Highkey:
An overall brightly lit scene with realtively few shadows. (Lighting)

High-Pass Filter:
An electronic filter used in various audio circuits to attenuate all frequencies below a chosen frequency.

Hiss:
Asperity Noise. Noise caused by minute imperfections in the recording medium (tape). (Sound)

HMI:
An enclosed, AC mercury arc lamp. (Lighting)

Hollywood Box:
A stage plug-type box without fuses. (Lighting)

House Sync:
An internal timing reference used to synchronize all transports within a facility.

Horse:
A support for one or more rolls of film used on a cutting table.

Hot Splicer:
A film splicing machine of precision construction in which portions of a film are overlapped, cemented, then warmed and dried by a heating unit. (Film Editing)

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