Re: SL3D some more

[P3D Allan Woods <allanwx@xxxxxxxxxx>]

This is getting exciting!  Oh boy!  I hope no offence is generated
by the good natured and passionate approach  ;-)

>I haven't read the Q-dos patent so don't know what they thought
>was going on in their lens...

I think excerpts from the patent text are forthcoming.  Q-DOS
waited until Jimmie Songer's patent rights expired before
they manufactured and marketed his idea.  Free enterprise (!)

>but here is a simple experiment using a magnifying or other large
>simple lens.
>
>Examine your hand with the magnifier.  Using both eyes you should
>see your hand in 3D...

I don't think the analogy applies because we have only one piece
of film.

Your analogy of "reconstructed light paths" works perfectly if
we were viewing a hologram. (In fact holograms of magnifying
glasses do exist and are quite intriguing!)

But, once the image is recorded on a single sheet of ordinary
photographic film, we cannot reconstruct the original light
paths just by looking through rose coloured glasses.

>Peter's Q-dos manual also encourages a wide aperture for enhanced
>3D effect, which is consistent with the 'weighted center' model as
>well as my mask experiments.

Actually, my reading on this is that a larger f-stop is recommended
to reduce the "depth-of-field" so that there is (here it comes)...
"Enhanced 'Fringing'"

How's that?
Sorry if I yelled.  Medication, you know.

allanwx@xxxxxxxxxx


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