P3D RE: Projecting vectographs?

["Ivester, Paul" <ivestep@xxxxxxxxxxx>]

> > >15 vectographs, 3.25 inches by 4 inches, for navigation instruction
-- wire
> > >drawings of celestial spheres, globe projections,  etc.  They have
a fair
> > >amount of detail but are schematic drawings. We projected them at
the
> > >Cascade Stereo Society, they completely 'violated the window' and
the
> > >spheres looked suspended in the room.
> > 
> > How did you do that?  Overhead projector?  -- George Themelis

> Michael Kersenbrock replied:
> It was with one of those *OLD* projectors that takes glass slides of
> that size.  Although mine wasn't used, I've got one at home that's
> a Bauch & Lomb unit with a lens who's front is three or four inches
> in diameter.  :-)

This is the kind of projector that is correctly called a "Stereopticon",

though it is extremely rare that it is used to project stereo slides, as

it is normally only a single projector.  Vectographs are an unusual 
application.

Paul Ivester
mailto: ivestep@xxxxxxxxxxx



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