Re: [photo-3d] Re: Left camera behind right camera

["David Lee" <koganlee@xxxxxxxxxxxxx>]

----- Original Message -----
From: Jim Harp <matmail2@xxxxxxxxxxxxx>
To: <photo-3d@xxxxxxxxxxx>
Sent: Wednesday, April 26, 2000 9:06 AM
Subject: [photo-3d] Re: Left camera behind right camera


>
> >>I've recently been
> >> experimenting with putting the left XR-10M partly behind the right
one...
>
> >> Of course custom prints or digitally manipulated images could be
> >> adjusted to match exactly.
>
> >This is a minor point and one might think it picky of me to point it out,
> >but, however small the differences between these two images, they can not
be
> >adjusted to match, either optically or digitally, because the difference
is
> >not a matter of magnification, but increase as the objects get closer.
>
> I don't think it's a minor point at all - I stand corrected - any size
> discrepancy caused by this method can't be entirely fixed by changing the
> size of the image.  I've been pleased with the pairs I've been getting,
and
> have even projected some slides successfully, but I don't tend to shoot
any
> closer than 8 feet.  Before this I used the twin XR-10Ms only for scenics
> and saved my Nimslo for shots involving people and distances less than 12
> feet.

Why not use a Realist?


I've been thinking of getting a pair of 28 - 70 zoom lenses for the
> Ricohs.  I don't know if I would be able to adjust one lens precisely
enough
> to compensate for the 2 1/4 inch displacement, but if I could would the
> resulting pairs match?

No, for precisely the same reason as stated above.

I think I'll get back to work on my plan to mount one
> of the cameras upside down.

My experience is that no one system will work for every kind of shooting
situation. Most of my shooting is done with medium and large format twinned
cameras and although I can get as close as 4" with the medium format TLR's,
I very seldom put them that close for landscape work. On the other hand, for
people I don't think there is anything that will beat a stereo camera
(either Realist or RBT (too bad I don't have the latter)).

David



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