30-06-2020, 03:59 PM
Reversal film has limited exposure latitude, ie, it has to be very carefully exposed to yield good results. Negative film has more exposure latitude.
Before the news was broadcast in colour, news film tended to be shot AND edited in the cutting room on B&W negative (16mm): therefore a positive image was only seen on transmission (which was generally live telecine transmission then). There is a wonderful story about a film editor who patently didn't know much about sport: he synched up a commentary about a woman golfer to what he thought was the corresponding negative material. On transmission, the accompanying pictures turned out to be of a Scotsman in a kilt tossing a caber!
I have a 16mm telerecording, with burnt-in timecode in vision, of the second episode of 'A Hitch Hiker's Guide To The Galaxy' (produced in 1981, I think). It would have originally had a separate magnetic soundtrack, which I do not have: however, it carries a combined optical track made at the time of telerecording. This telerecording appears to have been made as an aid to laying sound effects and music, which would been used in a film dubbing theatre to make the 'final mix' sound, also on separate magnetic film (sepmag), just as a production shot on film at the time would have done. In this case, the fully-mixed sepmag sound would have then been 'laid back' to the transmission videotape.
The telerecording has some chinagraph marks on the picture in places (to aid track laying for the sound). The optical track is of the original studio sound only: for instance, there is muffled 'guide sound' only for Marvin The Paranoid Android (presumably voiced by the Android prop operator on the set at the time of recording).
Best wishes,
Francis
Before the news was broadcast in colour, news film tended to be shot AND edited in the cutting room on B&W negative (16mm): therefore a positive image was only seen on transmission (which was generally live telecine transmission then). There is a wonderful story about a film editor who patently didn't know much about sport: he synched up a commentary about a woman golfer to what he thought was the corresponding negative material. On transmission, the accompanying pictures turned out to be of a Scotsman in a kilt tossing a caber!
I have a 16mm telerecording, with burnt-in timecode in vision, of the second episode of 'A Hitch Hiker's Guide To The Galaxy' (produced in 1981, I think). It would have originally had a separate magnetic soundtrack, which I do not have: however, it carries a combined optical track made at the time of telerecording. This telerecording appears to have been made as an aid to laying sound effects and music, which would been used in a film dubbing theatre to make the 'final mix' sound, also on separate magnetic film (sepmag), just as a production shot on film at the time would have done. In this case, the fully-mixed sepmag sound would have then been 'laid back' to the transmission videotape.
The telerecording has some chinagraph marks on the picture in places (to aid track laying for the sound). The optical track is of the original studio sound only: for instance, there is muffled 'guide sound' only for Marvin The Paranoid Android (presumably voiced by the Android prop operator on the set at the time of recording).
Best wishes,
Francis
Francis Niemczyk
