P3D re: Free Viewing

[Paul Ivester <pi@xxxxxxxxxxxx>]

As one of those who, despite years of trying, cannot free view 
anyting larger than about 1.5 inch centers, I use a viewing aid 
for stereo web sites.  The cheapest of these is the plastic 
lorgnette available from Reel-3D Enterprises
(http://www.stereoscopy.com/reel3d/print-viewers.html).
I usually use an old Keystone stereoscope from which I have
removed the tongue.  This way I can hold it up to the computer 
screen.  It has less chromatic abberation than the plastic 
lorgnette, and has strong prisms for wide pairs.

Paul Ivester

New e-mail address:
pi@xxxxxxxxxxxx


------------------------------