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\nNovember 11, 1967…ABC Debuts First Color Portable Camera<\/p>\n
\nNovember 11, 1967…ABC Debuts First Color Portable Camera<\/p>\n
Below is a clip from November 11, 1967 showing the camera in use by ABC at the UCLA – USC game in Los Angeles.<\/p>\n
ABC and Ampex worked together to come up with three configurations of the color portable unit. Shown here is the original cabled version, with a mini camera control unit in the back pack. Later, the back pack could be loaded with either an Ampex VR 3000 videotape recorder, or a microwave transmitter for live, uncabled work.<\/p>\n
The Ampex, two Plumbicon, BC-100 camera head had an optical splitting system, providing one tube for the luminance channel and the other with an alternate red-blue image produced by a synchronously rotating filter wheel. Basically, this is a modified version of the Field Sequential color system.<\/p>\n
The combination of luminance and green, with field sequential red and blue, is sent back to base via a compact microwave link mounted on the backpack. The base station uses a field-storage delay device to reinsert the alternately missed red and blue signals, providing Red, Green and Blue for matrixing and encoding into standard NTSC format. A nickel-cadmium battery keept the system operating for over an hour, with battery changes possible in a few minutes. -Bobby Ellerbee<\/p>\n
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