Re: Look For Your Name Here!

[P3D George Gioumousis <georggms@xxxxxxxxxx>]

Mark Kernes wrote
> 
> --------------------- snip ---------------
> 
> Re the discussion of Mr. Lo: Is it possible for someone with normal darkroom
> equipment to print lenticular prints? Not that I have such equipment, you
> understand, but when I took a tour of American 3D these many years ago, the
> printing process was described as some deep, dark secret, not vouched-safe
> for lesser mortals. I have since figured out that one needs to "cut" the 4
> photos into very, very tiny strips and "paste" them side by side in a special
> manner against the lenticular material - or perhaps this is all done
> electronically - but is it something an amateur could do?
> 

A few years ago I read the nimslo patents. My memory of what happens
while making prints is sort of like so:
  The lenticular material has the emulsion on the back side (which is 
  the flat side). One negative is projected to the lens side. The lenses 
  focus it to a thin stripe under each lens. Then the next image is moved
  to just the right point and also projected, leading to another set of
  stripes next to the first one. Then repeat twice for a four-eyed camera
  and once for a three-eyed one. Finally paint something on the back side
  to protect the emulsion.

My memory is that the lenses are .005 inch wide and the stripes .001
inch. A friend had a couple of 8x10 prints made once. Since the same
lenticular material was used, but they were viewed from a greater
distance, the results were stunning. (But still not quite what a Realist
with red-button viewer can do.)

I don't think it is a deep dark secret, since the patents seemed pretty
clear. On the other hand, I think the level of precision required would
be beyond what most of us could do.
-- 
George Gioumousis           /---\        |       /---\ 
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georggms@xxxxxxxxxx           |          |         |   
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