P3D Re: Newbie questions

[Peter Davis <pd@xxxxxxxxxxxxx>]

At 07:55 AM 4/30/98 , Dan Knight wrote:
>I've been searching the internet on and off for several months looking 
>for information on how to do stereo photography using my Nikon SLR -- 
>without having the move the camera and take two separate photos.
>
>I remember back in the olden days that you could buy stereo adapters that 
>would mount on the front of your lens, essentially providing stereo 
>half-frame images on a 35mm slide or negative.
>
>I am interested in finding or constructing such a device, but can't seem 
>to find any information. I hope the list can help.
>
>Related to this, I would like to do some stereo photography with my zoom 
>lenses (19-35 and 28-200). Would the same device work for my zooms that 
>works on a 50mm lens? (Zooms take huge filters -- 72mm and 77mm.)
>
>I've seen all sorts of information about figuring stereo base that depend 
>on focal length and subject distance. Is all this necessary? Or is it 
>possible to take decent stereo photos without all the math?

Dan,

It's still possible to find commercially made stereo adapters for 35mm
cameras.  The Pentax turns up from time to time, priced anywhere from $150
to $300 I'd say.  However, this is pretty much designed for normal
(50-55mm) lenses at f/5.6.  The Stitz (and Miida, I believe) adaptors
actually have some aperture and mirror angle adjustments to accomodate
various focal lengths.  These are rare, though, and I've never seen one for
less than about $250 (adapter alone, without the viewer).

There are others around also.  I just picked up a Chinese-made one that
looks similar to the Pentax, but I haven't tested it yet.

-pd



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