P3D Re: world of non-ortho

[bercov@xxxxxxxxxxx (John Bercovitz)]

> Good point George. Since prints are typically less sharp than their slide
> counterparts, could it also be that because the prints have less detail for
> depth clues, the perception is a little flatter, thereby compensating for
> the increased stereo base?
> 
> I'd already posted some time back that medium format revealed more depth due
> to increased detail, providing you have good lenses and a good viewer. Now
> perhaps a new equation has come into the picture: A fuzzy stereo camera with
> a wide base = ortho-like stereo!
> 
> Waddya think there John B ?

Well...  I think you do see more depth in medium format but...  How do I say
this anyhow?  I think you gain in the fine stuff.  What I mean by fine stuff 
is you can see modelling in someone's face if they are at a reasonably close
distance.  To see this modelling, you need to be able to see fine disparities.
Another example of fine stuff is seeing that something located at a quarter
mile is closer than a star.  Not much disparity to work with there.  But!  A
cat located seven feet from the camera against a backdrop of a distant hill
is still a cat close by against a hill whether it's done with a fuzzy camera
or a sharp camera because that there is a whole lot of disparity and it can't
be covered up by crummy optics.

John B


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