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P3D Stereo-Jet





>>Plus you have the strange and rare inks, and the even stranger and rarer
>>polarized, three layer transparency material.  The 200.- for an 8x10 seems
>>like a good deal once you consider all these factors.


What makes you believe the inks are polarized? The inks are not polarized
because they molecular alignment of each side of the Vectograph film takes care
of this. The material is a multi layer material, but the film layers basically
consist of a base and a aligned layer on the top and on the bottom, with a
different alignment. As for being rare, how much of the material do you want to
buy? Polaroid will sell you as much as you want. Not rare or strange, just a
material that has been available for decades.

For the adventurous folks on the list, get Polaroid's Vectograph book, buy some
Vectographfilm, and chemicals to make up the printing ink, a cheap ink-jet
printer, and you can make your own black and white vectographs that will rival
anything lenticular.

Polarizers themselves are made by inking specially manufactured film, with a
specific alignment. In other words, even polarizers do not use Polarized inks.
In making conventional Vectographs, iodine is used as the ink. And it is not
polarized. If you do any research on "Polarized Inks" - Inks that exhibit true
polarization, you will discover that they are extremely expensive to make and
have a number of problems that make them difficult to apply using a conventional
ink-jet printer.

I commend the folks at The Slide Factory for bringing color vectographs to
market, and I applaud the folks who are using modern technology to recreate a
stereoscopic printing system that if were lower in cost, would be more widely
used.


RM