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Post by Jon Preddle on Feb 7, 2013 1:47:15 GMT
Ah - the Restoration Team's website article on the VHS for "Reign" mentions phosphor holes... www.purpleville.pwp.blueyonder.co.uk/rtwebsite/reign_of_terror.htm"Interestingly, the alignment of phosphor holes and presence of repetitive black tramline scratching down the left border of the picture (unlikely to be seen on VHS due to overscan on TV sets – and therefore repair not attempted) suggests that at least 2 of the episodes were film recorded at the same session on the same faulty equipment. The phosphor hole was especially intrusive on episode 6 so was painted out. However, it was only selectively removed on the other 3 episodes."As I noted in my OP, the same 'centre' phosphor hole exists on any other DWs, so the same "faulty equipment" must have been in use for quite some time...
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Post by Mark Vanderlinde-Abernathy on Feb 7, 2013 2:12:53 GMT
Could these spots therefore suggest that the 16mm videos we have with them are from the same batch? For example: Film A is proven to be from Singapore, ergo other films with the same spot are also from Singapore.
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Post by Brad Phipps on Feb 7, 2013 2:22:04 GMT
If it were present on all four episodes then unlikely as a country wouldn't receive both a Suppressed and a Stored field version within the same story. It might simply mean these episodes were created on the same piece of equipment and sent to various countries. We'd still be none the wiser (unless it was a specific fault on a specific batch that was easily... spotted.
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Post by Mark Vanderlinde-Abernathy on Feb 7, 2013 2:51:06 GMT
Maybe a rough estimation could be made. They said that it was more noticeable on Reign 6, which was a Stored Field. If they've been using this faulty equipment for awhile, then the ones with a "weak" dot may have been early on in this equipment's life ... while "stronger" dots are much later.
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Post by Jon Preddle on Feb 7, 2013 3:22:36 GMT
Could these spots therefore suggest that the 16mm videos we have with them are from the same batch? No, because the 'dots' would be 'burnt' into the negative, so all the prints struck from these, irrespective of when they were made, and where they were sent, would have the 'dot'.
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Post by LanceM on Feb 7, 2013 4:04:21 GMT
I was thinking the same thing there Jon in regards.
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Post by Mark Vanderlinde-Abernathy on Feb 7, 2013 4:52:15 GMT
Darn! Oh well. It was a nice somewhat logical thought I had.
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Post by Simon Smith on Feb 7, 2013 5:09:52 GMT
Sometimes a camera would develop a blemish on its targetting scanner causing the white spot. As the camera would be one of a number within a scene, the spot would appear in some shots and not others.
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Post by John Green on Feb 7, 2013 12:23:23 GMT
Aren't these known as 'Preddle Spots'?
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Post by Brad Phipps on Feb 7, 2013 20:57:47 GMT
They are now.
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Post by Steve Roberts on Feb 10, 2013 11:46:28 GMT
If it's dead centre, it's probably a burn in the phosphor of the film recorder screen due to a faulty white dot suppression circuit, as Sue suggests. You might be old enough to remember turning off a TV and seeing the scans collapse to a single white dot in the centre of the screen, which faded away over a couple of seconds. Because of the high resolution of the film recorder CRT and the much higher beam current in use, the beam could literally burn a hole in the CRT phosphor coating if the beam was not instantly cut off when the line and field scans were turned off. I suspect this is what has happened here. Other dark spots are more likely to be caused by phosphor that has flaked off or fragments of the 'flashed getter' that has hit the phoshor. See en.wikipedia.org/wiki/Getter
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