While the press releases on Electronovision were deliberately vague, perhaps to add more mystique to the process, it used conventional analog Image Orthicon video camera tube units, shooting in the B & W 819-line interlaced 25fps French SECAM video standard, using modified high-band quadruplex VTRs to record the signal.
32.
The world of live television drama was a perilous but culturally yeasty one : in small, hot studios originally designed for radio, producers like Coe oversaw a melange of a director, writer, actors, stage crew and sets, image orthicon cameras, and a technical director operating a primitive 20-button console.
33.
Occupying a 9400 square metre ( 101, 000 square feet ) site, the complex featured a 140-square-metre studio area and was fitted out with RCA equipment two 4?" image orthicon cameras were purchased for use in the studio at a cost of ?, 000 ( A $ 16 000 ) each.
34.
With the beginning of color television in the early 1950s, Balderson was cameraman for the " Bob Hope Special ", the first NBC color broadcast after the Federal Communications Commission ( FCC ) formally approved the compatible color system developed by NBC's then-owner, RCA . He later recalled that the gigantic image orthicon tubes.
35.
The image dissector has no " charge storage " characteristic; the vast majority of electrons emitted by the photocathode are excluded by the scanning aperture, and thus wasted rather than being stored on a photo-sensitive target, as in the iconoscope or image orthicon ( see below ), which largely accounts for its low light sensitivity.
36.
The 1960s productions used RCA TK-60 image orthicon video cameras, which have a characteristic white " glow " around black objects ( and a corresponding black glow around white objects ), which was an inherent flaw of image orthicon video camera tubes called " blooming . " Later vidicon and plumbicon tubes produced much cleaner, more accurate pictures, as well as a higher resolution of 1400 lines.
37.
The 1960s productions used RCA TK-60 image orthicon video cameras, which have a characteristic white " glow " around black objects ( and a corresponding black glow around white objects ), which was an inherent flaw of image orthicon video camera tubes called " blooming . " Later vidicon and plumbicon tubes produced much cleaner, more accurate pictures, as well as a higher resolution of 1400 lines.
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