Re: Converging lenses (was: Window reversal); D|s-TortiO|\|s

[P3D John W Roberts <roberts@xxxxxxxxxxxxxxxxx>]

>Date: Wed, 25 Jun 1997 20:03:17 -0500
>From: P3D Gabriel Jacob <jacob@xxxxxxxxxxxxxx>
>Subject: Re: Converging lenses (was: Window reversal); D|s-TortiO|\|s

>Mike K. writes
>>Hmmmmmm... okay you want a technical for-reality's-sake sort of reason for
>>keystoning.

>Mike, I think your missing the point. You should read my post in context
>with all my other posts regarding this subject. It's not a matter of what
>I want, but rather the impetus of the discussion. That is, is keystoning
>is a valid effect?

>So unless
>someone can come up with valid reasons for wanting to achieve this
>effect and KEEP it, I think we have exhausted the possiblities and
>turn the floor to any other bright, open minded people. :-)

How about trying to accurately recreate the view of an extreme close-up
(for instance, of your hand 8 inches in front of your face)? If you
look at a real object that close without using any optical equipment,
you'll see keystoning, so if you wanted to recreate the maximum possible
realism, you'd need to have keystoning.

Not that *I'd* do it, but it might appeal to some of the more extreme
proponents of realism... :-)

John R


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