Wrong 8mm-info in Wikipedia?

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prtprt
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Wrong 8mm-info in Wikipedia?

Post by prtprt »

Accoring to Wikipedia the size of a super8 frame is 5.79 x 4.01 mm. But according to SMPTE standard it is 5.69 x 4.22 mm. SMPTE also states that the projector frame size is 5.46 x 4.01 mm.

I found the SMPTE data here:

[url]www.super8data.com/database/articles_li ... ndards.htm[/url]

I couldn´t find SMPTE data about normal8.

Is the Wikipedia info wrong about the super8 frame size (perhaps also about normal8), or is it measured in some other way?

//Charlie
bolextech
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Re: Wrong 8mm-info in Wikipedia?

Post by bolextech »

Wikipedia is wrong.
Somebody should correct it.

Cheer,
Jean-Louis
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carllooper
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Re: Wrong 8mm-info in Wikipedia?

Post by carllooper »

Yeah - that info in Wikipedia is incorrect and left me red faced a month or so go.

I was arguing a 1.33X anamorphic provided little benefit over a simple frame crop when shooting 16:9 on S8, based on the Wikipedia saying S8 had a 5.79mm width.

Carl
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jpolzfuss
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Re: Wrong 8mm-info in Wikipedia?

Post by jpolzfuss »

Hi,

the German Wikipedia lists the correct dimensions for Super8 and hence should also be correct for Reg8 (4.9mm x 3.6mm):
"Mit Erscheinen von Super 8 ging man dazu über, das vorherige Format als Normal 8 (englisch: Regular 8) zu bezeichnen. Die Bildgröße wuchs von 4,9 mm × 3,6 mm auf 5,69 mm × 4,22 mm und somit um etwa 36 Prozent." (source: http://de.wikipedia.org/wiki/Super8 )
However the German Wikipedia also uses an incorrect image for the S8/R8-comparrison:
http://de.wikipedia.org/w/index.php?tit ... 1219123657
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carllooper
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Re: Wrong 8mm-info in Wikipedia?

Post by carllooper »

Yes, the correct SMPTE standard for S8 camera aperture is:

4.69 x 4.22 mm

However a given camera manufacturer was free to ignore this standard and do whatever they liked. The height, of course, can't be made much larger without frames overlapping - although some cameras do indeed have overlapping frames. Where there is more 'freedom' is horizontally and some unmodified cameras often expose across the sprocket (albeit somewhat uselessly).

And of course, modified cameras have sought to squeeze some extra bandwidth by exposing into where soundtracks would have otherwise gone.

Carl
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Rudat
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Re: Wrong 8mm-info in Wikipedia?

Post by Rudat »

Here it is.. standard 8 and super 8 film frame sizes
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prtprt
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Re: Wrong 8mm-info in Wikipedia?

Post by prtprt »

Thank you for the info!

And Carl: of course you mean 5.69 x 4.22 mm.

//Charlie
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Re: Wrong 8mm-info in Wikipedia?

Post by carllooper »

prtprt wrote:Thank you for the info!

And Carl: of course you mean 5.69 x 4.22 mm.

//Charlie
Ah yes - a rather unfortunate typo there given the circumstances - but yes "5.69 x 4.22 mm" is what I meant.

cheers
Carl
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