Movies of Television Show Provide Permanent Record (Mar, 1948)
Filed under: Movies, Television — @ 12:47 am
Source: Popular Mechanics ( More articles from this issue )
Issue: Mar, 1948
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Source: Popular Mechanics ( More articles from this issue )
Issue: Mar, 1948
| Buy on Ebay
Movies of Television Show Provide Permanent Record
With a 1200-foot magazine that permits continuous recording of a half-hour program, a specially designed movie camera photographs television programs directly from the monitor tube at the broadcasting station. The double-chamber magazine holds both unexposed and exposed film and can be removed in a lighted room. The camera will be used by stations to provide a permanent record of their programs.
After focusing and framing I’d expect a lightproof enclosure between the CRT and camera lens.
No mention of flicker abatement.
Film = 24 frames per second.
Video = 30 fields per second.
Any synchronization between the CRT and camera?
Some of the “Your Show of Shows” I’ve seen on PBS look great!
Comment by jayessell — January 8, 2008 @ 9:30 am
The camera is adjusted to film at 30fps.
Comment by cks2008 — January 11, 2008 @ 12:19 pm
You’d think this was as simple as parking a movie camera in front of a TV screen, but it actually had to wait for picture tube technology to make a bright enough image to film well at high speed.
Before 1948 we have less than 10 minutes of off-screen film, all of that shot at 16fps silent speed.
Comment by 7 5/8 LO — March 8, 2008 @ 2:50 pm