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From: jerry@oliveb.UUCP (Jerry Aguirre)
Newsgroups: net.sf-lovers
Subject: Re: high frame rates / strobing
Message-ID: <328@oliveb.UUCP>
Date: Mon, 23-Apr-84 15:37:11 EST
Article-I.D.: oliveb.328
Posted: Mon Apr 23 15:37:11 1984
Date-Received: Thu, 26-Apr-84 01:04:33 EST
References: <12408@sri-arpa.UUCP>
Organization: Olivetti ATC, Cupertino, Ca
Lines: 25

I agree with your point about strobing.  The wagon wheels would just
spin backward at different speeds.

About your idea for zero interval or overlapped frames.  Would it not
be possible to have two (or more) exposure paths.  This would make it
possible to alternate exposure and film motion between the two paths.
With the right mechanism you could even overlap the exposures.

While getting the fine alignment between the frames would require a
precise mechanism this does not seem a great deal more difficult than
getting adjacent frames aligned in an ordinary camera.

As to the mechanism, I would imagine something like a rotating mirror
behind the lens that disolved the image from one frame to the next.  It
would probably be necessary to have several frames between "adjacent"
images to allow the alternating film motion.  This could be sorted out
when the negative in printed onto the positive so a standard projector
could still be used.

When it becomes cheaper to computer synthesize images than build sets
and costumes the problem will go away.  Or will they deliberately
incorporate the strobing effect to simulate "real" film?

					    Jerry Aguirre
    {hplabs|fortune|ios|tolerant|allegra|tymix}!oliveb!jerry