Xref: utzoo comp.graphics:7017 rec.video:7600
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.csd.uwm.edu!cs.utexas.edu!uunet!yale!cmcl2!esquire!yost
From: yost@esquire.UUCP (David A. Yost)
Newsgroups: comp.graphics,rec.video
Subject: Re: HDTV and ATV Glossary (TN32)
Keywords: 525/59.94, 625/50, NTSC, PAL, SECAM, Component, Composite,
Message-ID: <1367@esquire.UUCP>
Date: 21 Aug 89 17:59:33 GMT
References: <120919@sun.Eng.Sun.COM> <121076@sun.Eng.Sun.COM> <278@bilver.UUCP> <26754@amdcad.AMD.COM> <3273@skinner.nprdc.arpa> <12611@pur-ee.UUCP>
Reply-To: yost@esquire.UUCP (David A. Yost)
Organization: DP&W, New York, NY
Lines: 18

In article <12611@pur-ee.UUCP> 3ksnn64@pur-ee.UUCP (Joe Cychosz) writes:
>Omnimax and Imax use 70mm film.  And yes the image is allong the sprocket
>holes instead of across.  The size for the frame is approximately 70mm
>by 50mm.  I have seen a longer format in which a frame was about 2.5
>times longer than the standard Omnimax frame.  I believe that this was used
>in the GE pavilion at Epcot Center.

The Epcot GE pavilion uses normal Omnimax format.
Imax and Omnimax are 70mm film traveling sideways, 15
perfs per frame.  (Traditional 70 mm travels vertically
with 5 perfs per frame.  Imax is 1.33 aspect ratio, and
the weird-shaped Omnimax image fits within that frame.

 --dave yost

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