P3D Hypo, Hyper, Ortho

[roberts@xxxxxxxxxxxxxxxxx (John W Roberts)]

>>why pay all this attention to the terms Hypo, Hyper, and Ortho at all? 
>
>Because they are derived from Greek roots?  :-)
>Hypo:  under
>Hyper: over
>Ortho: correct

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I think George commented that the terms hypo, hyper, and ortho are useful -
that may be the case, but I would submit that they are only *unambiguous*
at "normal" magnification, for which the interocular relates directly to the
human interocular.

(I would even venture so far as to speculate that to be truly "ortho",
a 3D photo should be mounted to *infinity* (if it contains objects that are
at "infinity"), rather than to *the stereo window*. I'm aware that mounting 
to infinity can cause serious problems for projection.)

For other than "normal" optics, is there some way to relate the terms to
apparent geometric distortions in the scene?

And more importantly, is it worse to be bitten by a hyperpotamus,
or a hypopotamus? :-)

John R


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