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Poster: | Rick Prelinger | Date: | Sep 3, 2013 6:18pm |
Forum: | prelinger | Subject: | Re: Videos with black raster cut-outs |
From Wikipedia (http://en.wikipedia.org/wiki/B-roll):
"The term B-roll originates from the method of 16 mm film production from an original camera negative. Frames of workprint and of original negative are matched exactly through the use of edge numbers that appeared on each frame of original and work print. But the original was not strung together in a simple linear fashion as was the work print. Instead, the original was edited in a "checkerboard" pattern, with each shot synchronized to an equal length of opaque leader on a second roll. These "A and B" rolls functioned equally to make blind splices, fades, and dissolves possible. Each roll was printed separately onto a single roll of raw stock to produce projection prints.[1] The process is described in the 1982 edition of the "Recommended Procedures" of the Association of Cinema and Video Laboratories, and in the classic text, Film and its techniques.[2]"
Reply [edit]
Poster: | spuder | Date: | Sep 4, 2013 11:25pm |
Forum: | prelinger | Subject: | Re: Videos with black raster cut-outs |
Also explains why many of these look so good as they are originals or at least first copies.
It would be great if the AV Geeks could label those uploads as A&B rolls.