P3D Keystone Telebinocular

["Dr. George A. Themelis" <DrT-3d@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

>From: Bob_Maxey@xxxxxxxxxxxx

>Who here uses one of those Keystone(?) Telebinocular viewers (I am going 
>on memory here - I was reminded of this device when I saw one in a past 
>issue of Stereo World), and what can I expect to pay for one?

The simple hand-held black viewer is the Keystone Telebinocular with 
single-element lenses.  It goes for around $50 to $100.  The Keystone 
"Visual Survey" Telebinocular is a table-top unit, heavy with adjustable
height, wide for spectacle-wearers, AC illumination and *achromatic
lenses*. I have one of these and love them.  They have been going for
$150 and up.

George Themelis


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