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This topic comprises 4 pages: 1 2 3 4
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Topic: White Christmas - is this a "t.v. print"?
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Martin Brooks
Jedi Master Film Handler

Posts: 900
From: Forest Hills, NY, USA
Registered: May 2002
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posted 01-01-2008 03:04 PM
quote: Ron Funderburg unless it is Disney and they have been claiming that scope is 2.4 to 1 for some time)
The current SMPTE standard for projecting anamorphic 35mm is .825 x .690 which unsqueezed works out to 2.391:1 (essentially 2.4:1). This is the aspect ratio in the SMPTE RP-40-1995 test film. The height was reduced in the standard some years ago because lab splices were visible when projected at full height. Older films were intended for slightly different apertures, according to the standards of the day: The 1986 (6th edition) American Cinematorgraphers Manual documents Panavision, Super Panavision 35, Todd AO 35 and Super Techniscope at .838 x .7 (2.394) projection. In the 1973 ACM, this was expressed as .839 x .7 (2.397). I don't know why the width was reduced in the standard by .001.
The 1969 (3rd edition) of the American Cinematographers Manual had Panavision 35 at .839 x .715 (2.347) with a note that projecting at a .715 height would reveal splices. Superscope and Techniscope had the same specs.
I can understand reducing the height, but I don't know why the width was dropped from .839 to the current .825. .839 x .690 would have worked out to 2.432. Maybe some people thought that was too wide.
Vistavision: The ACM 3rd edition quoted the negative area as 1.485 x.991 (8 perf horizontal), which works out to 1.498 AR. The nominal dimensions for a VV print were 1.418 x .722 for a 1.964 AR which was designed for use in houses that normally projected anywhere from a 1.85 to 2.0 AR, not that Vistavision was ever really projected horizontally, aside from a few special venues like Radio City Music Hall. Regular (vertical) 35mm prints came in two flavors: .825 x .446 (1.85) and .825 x .497 (1.66).
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Lionel Fouillen
Expert Film Handler

Posts: 230
From: Belgium
Registered: Nov 2002
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posted 01-02-2008 03:47 PM
The FORUM in Liège, Belgium, was also equipped to show genuine horizontal VV in the ratio of 1.85 projected on a screen surface as wide as scope but higher. This theater went widescreen in the late fifties, having not only VV but also scope (2.35) and flat 1.66 for conventional 35mm. It never had magnetic sound. Sound was mono for scope and 1.66, and Perspecta stereo for VV.
As my father reminds me (he saw The Ten Commandments and a few other films in VV there), sound was awful because of the theater architecture and accoustics (3000 seats across the stalls and the three balconies turning around the auditorium on the side walls much like old Italian-style theaters). For this reason they didn't bother to try installing Dolby Stereo later.
As one of you pointed out, VV had an interesting aspect ratio which better suited the stage of most older theaters. In the late seventies or early eighties, the FORUM had a re-run of The Ten Commandments in conventional 35mm (1.66). My father, who went to see it, was extremely disappointed by the image that filled about just the half of the screen surface of the earlier VV projection...
Since the mid-eighties, the FORUM does not show films anymore. It is exclusively used for concerts and theater plays.
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