The horizontal or vertical picture size at a given distance from a camera to the subject. The distance from the centerline of the lens to the camera pick-up device. It determines the size of the image and the angle of the field of view as seen by the camera through the lens. The amplification a system provides to a signal. Gen-Lock Method used to synchronize one or more cameras by external means.
Typical methods are composite video, composite sync, and horizontal or vertical sync.
Ground Electrical point that is common to either metal chassis, a terminal, or a ground bus. H oming Process of displaying a given camera output on a given monitor Horizontal Blanking Electrical signal produced at the end of each scanning line Hum Electrical disturbance at the power supply frequency or harmonic. Image Intensifier Electronic device used to provide a brighter output image than the input image. Impedance Opposition to the flow of electrical current. Incident Light Amount of light directly over an object.