P3D Re: More Lenticular Queries

["Greg Wageman" <gjw@xxxxxxxxxx>]

From: Bruce Springsteen <bsspringsteen@xxxxxxxxx>


>Some simple(?) questions, possibly without simple answers:
>
>How is the stereo window controlled on a lenticular print - that is,
how
>are the composite images placed "in registration" to locate a scene
>relative to the picture plane (window).
>
>How well do through-the-window effects succeed in lenticular, and what
are
>the practical constraints on this?
>
>Is there something like maximum allowable deviation that can be
reasonably
>well estimated for various lenticular sizes, compositions, and formats?
>
>Has anyone examined these issues closely?  I'm up to mischief as usual.


All good questions, Bruce, and I won't pretend to know the answers.  I'm
a beginner in this field.  I'd certainly love to know the answers, too.

But I do have one observation/supposition.  I don't think a lent. can
have a "stereo window" in the conventional (i.e. stereo slide or print)
sense, because there is no binocular mask to converge and define a
"window".  That's not to say that a lent. can't have an object which
appears to float "above" the surface of the lent.; I know that's
possible because I've seen it.  I just don't think the term "window"
really applies.

Otherwise, I would expect the same rules to apply: objects with a
positive shift would appear "deeper"; objects with no shift would appear
to be at the surface of the lent., and objects with a negative shift
would appear in front of it.

     -Greg W. (gjw@xxxxxxxxxx)



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