[photo-3d] Donaldson Stereo Viewer - info needed!

["Dr. George A. Themelis" <drt-3d@xxxxxxx>]

Hello,

I got a Donaldson stereo viewer.  My understanding is
that the Donaldson stereo camera is a custom made
full frame camera sold to doctors to take pictures of
the eye.  But it has also found use between stereo
photographers for full-frame macro stereos.

I have obtained the Donaldson viewer which is
a solid all-metal instrument with good lenses and
FL lighting.  I understand that it is designed to view
full frame stereo slides.

There is a slot to insert the slide, 50mm tall.  I assume
it takes 2x2 stereo pairs, but in what type of holder?

As I would be interested in selling this unit, any info
about price would be very much appreciated.

Thank you,

George Themelis
http://home.att.net/~drt-3d/