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Video production terms.

Non linear video editing: Editing video by capturing footage onto a computers hard disk, and cutting the footage on editing software such as Adobe Premier.

3 CCD: Refers to the charged coupling devices used to convert the light gathered by the cameras lens into an electrical signal. A 3CCD video camera has 1 CCD for each primary colour (RGB).

AV Switcher: This device is used to enable the operator to feed in live video feeds from multiple cameras, and switch them to a single output.

Linear editing: Tape to tape video editing system utilises 3 tape machines and an editing controller.

Point of view shot: This type of shot is used to convey what an actors eyes are actually seeing.

Prime lens: Fixed lens with no facilities for zoom or wide angle.

Chroma key: Overlaying 1 video image over another. This is normally achieved using either a blue or green screen as a background. The camera signal is fed into a chroma key unit where the background is keyed out for another video image.

Strobe: Displaying action as a series of still images flashed onto the screen at variable rates.

Time lapse: Still frames shot at regular intervals. When played back at normal speed, the effect is of greatly speeded up motion.

Picture in picture: A miniature picture inserted into a main shot.

Prompter: You can provide a moving script for performers/newscasters to read whilst looking at the camera.

Edit decision lists: Here you check through shots, select which you want to keep, and note their in and out times.

Waveform monitor: This is an oscilloscope displaying a fluctuating line, which traces the variations of the video signal, the sync pulses, etc.

Colour bar generator: A test signal comprising of a series of vertical bars of standard colours (white, yellow, cyan, magenta.

Telecine: film to video transfer or DVD whether you are transferring 8mm or 16mm there are many different techniques which also vary in quality.

Matt box: A device which attaches to the lens of a video camera that enables the user to select filters for gaining different video effects.

ENG: Electronic news gathering.

Exposure: Exposing the CCD chips to the correct amount of light controlled by the aperture and shutter speed. If the picture is too light it is overexposed; too dark and its underexposed.

Depth of field: The distance in front and behind the subject which is in acceptable focus.

Cardioid microphone: A microphone whose angle of acceptance is heart shaped.

Colour temperature: A scale in Kelvins which measures the colour of the light.

Composite signal: The complete video picture signal containing chroma, luminance, vertical and horizontal sync information.

Continuity: Maintaining details such as lighting, clothing, props, sound and movements from shot to shot in a particular scene.

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