Television’s First Electronic Zoom Lens…The RCA Electra Zoom
As we saw in the article just before this, Zoomar came to television in the middle of 1949 and was the first zoom for TV use. The first use of the RCA Electra Zoom lens was at NBC New York, and I think arrived a month or so prior to the debut of the ‘Today’ show in January of 1952 for cameramen to get the feel of it’s operation. We see it in use there on the debut broadcast.
Included here is the RCA catalog listing and, an original prototype model built by it’s creator, Joseph Walker, who was a pioneer of zoom and fixed lenses at Paramount Pictures. Some of the earliest uses of a zoom lens in motion pictures are due to Walker’s work in the 1930s. In 1950, he added an electric motor to one of his earlier models for smoother action. In late 1951, RCA and Zeiss bought the invention and took over the manufacturing and sales. Enjoy and share! -Bobby Ellerbee
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