Film Stds/sizes

FILM STANDARDS AND SIZES

 

I have been trying to bring together a database of all the info I can glean on film dimensions. Here is a first cut, plus some of my source material. If anyone can help to correct, amend, fill in or expand the table (with source material), I would be most grateful. I am only concerned here with the main gauges; there were scores - see Wikipedia for an exhaustive list - http://en.wikipedia.org/wiki/List_of_film_formats.

At one point, there were three Edison 22mmm Home Kinetoscopes on American eBay, so I grabbed lots of pix; they're on a page linked to this one. Another page covers 3.2mm, the gauge that never was.

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I have tried to do this in full size above, but the normal expandable thumbnail is below.

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I borrowed from Pat Moules one of the most basic and I think most important documents about 9.5.

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You can see the sort of complications that arose when making prints, by reduction from two different sizes of original 35mm image, as well as from original 9.5 camera negs. Note from the original (mostly original, anyway) that I have extrapolated the missing part of the lowest frame. I'm not wholly convinced about some of my translations into English, either. It's involved a lot of work to improve the original but in my view it was worthwhile. The fourth pic above is a re-scan after printing, as there are some problems with the original file.

I have placed alongside the only 17.5 drawing I've ever seen; thanks to J C Laubie.

Here are some diagrams I've cobbled together from various sources.

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I'm trying to accumulate as much info as I can about film specifications and related stuff. Here is the 16/9.5/8 film area comparison Pathescope were so fond of, a detailed analysis of Super 8 and stuff on running times and screen illumination. The Standard 8 figure of 47% of total area of film projected quoted in the Super8/Std8 comparison is much lower than the 55.25 figure in the Pathescope comparison. Super 8 comes in at 63% - almost the same as 16mm, and 9.5 sound is not given at all. The projected picture for 9.5 sound (see Vox illustration below) is 7mm x 5.5 (38.5), total area per frame is 7.54 x 9.5mm (71.63). I make that 53.75%.

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Here are some other various bits of info.

On a slightly different tack, the triple-print production of 9.5 seems to belong here, too. I have never seen the attraction of a gauge like 22mm as there is no chance one would ever have any significant amount of film, and because of its rarity it would be too expensive just as a curiosity, tho' I would love to see it. Lots more on this here.

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