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Author
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Topic: "We Ran It Wet"
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Hillary Charles
Jedi Master Film Handler

Posts: 748
From: York, PA, USA
Registered: Feb 2001
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posted 02-23-2003 03:04 PM
From what I've read, by the mid 1930's, Lohn Logie Baird had to abandon his mechanical television in order to compete with EMI's electronic version. He had contracted Philo T. Farnsworth to provide his electronic system, which by that time, had several disadvantages compared to the EMI/RCA system. Farnsworth's Image Dissector tube was not as light sensitive as the EMItron camera tube, and resolution was also an issue.
The 1936 Olympics also used the Farnsworth system, and when Philo and his wife traveled to Germany to collect his royalties, their passports were revoked and they had to be smuggled out of the country!
There are several good books on the subject: TUBE, PLEASE STAND BY, and THE LAST LONE INVENTOR
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Stephen Furley
Film God

Posts: 3059
From: Coulsdon, Croydon, England
Registered: May 2002
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posted 02-23-2003 06:27 PM
Steve wrote:
quote: Wasn't NBC transferring news video to film for preservation? I don't know if they still do but I'm certain I've seen footage that was almost certainly shot on tape but had been put on film.
The reminds me of another magazine article I once read, I think it may have been in something from the BKSTS. (I used to spend far too much of my time reading technical magazines).
A television company had developed a system for archiving colour video material by recording it onto 35mm black and white film stock. This material was chosen both for its superior archival properties and its low cost.
The process didn't record colour separations in the conventional sense; the composite video, which was still normal for broadcast work at that time was first separated into luma and chroma. The luma was recorded as a conventional monochrome positive image, but with a 2:1 anamorphic squeeze, using half the normal frame width. Alongside it the chroma was recorded using the other half. Exactly how it was encoded, I don't know. The film could then be run on any conventional black and white or colour telecine, and the resulting video signal put through a box of tricks which would recreate the original composite video. It was claimed that the system had the additional advantage that the film could be projected, in black and white only, using a half width aperture and an anamorphic lens, for preview purposes.
The system was said to be in use, but I have never heard of it since.
The BBC has re-created several episodes of 'Dr. Who, which they had long ago discarded, by combining black and white film recordings sold for transmission overseas with colour Betamax home video recordings.
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Stephen Furley
Film God

Posts: 3059
From: Coulsdon, Croydon, England
Registered: May 2002
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posted 02-26-2003 12:43 PM
Bernard wrote:
quote: No,never heard of them. Were they in the early days before me at Kingsway or Wells Street? I was last at the new studios in Grays' Inn Road, doing freelance about 10 years ago.
Bernard, I don't know a great deal about their backgrounds, but they both taught projection at Wandsworth Tech (now South Thames College) in the mid '70s. By that time, this was just 16mm, but there had previously been a setup there for training cinema projectionists.
The reason I mention them is that one of them had some involvment with the Coronation video/film recording/projecting system, and had a few photographs of the equipment. I think it was Harry.
They had been involved in a lot of interesting goings on in the 50s, and had stories going back to the sound on disk days. I was told that a pair of the GK Vistavision projectors was at one time installed in the College, but had long been removed when I was there. There was certainly a roll, a few hundred feet long of Vistavision print, lying around in one of the rooms, they used it to cut up for making slides from. It was when I saw a slide with an optical track on the top edge that I discovered Vistavision; I asked about it, and was shown the roll of film. Interestingly, I am certain that it had a VA track, duo-bilateral I think, but the print of 'Battle of the River Plate', which ran at the Odeon Leicester square had a VD track, which contained little or no silver. This must therefore have come from another film, but I don't know which one.
In an e-mail exchange with another member of these forums a few months ago, I was told that one pair of the GK projectors went to a College, and that parts of a pair are in store at a location in the uk, but the other parts, which were thought to be somewhere in Switzerland, had not been located.
At the time I knew them Ted was getting on in years, and Harry, though somewhat younger I think, had been ill, so I think it is quite liely that both of these gentlemen have now passed on; it is getting on for thirty years ago that I knew them.
At that time the college library had a few books on film projection, including an old one with pictures of the (then) new Grandeur 70mm machine, and various other oddities from the '20s, early sound systems, etc.
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