[MF3D.FORUM:184] Re: New source of cheap viewer lenses

[Greg Erker <erker@xxxxxxxxxxxxxx>]

>Regarding the responses to my original post:
>
>A security viewer is a high end version of those silly little things you
>look through doors with. Instead of a tiny wide angle optic, this one give
>you a large inverted image on ground glass. By removing the small optics,
>prisms and ground glass you end up with a large single lens in a focusing
>barrel that is very well suited for a beginner MF stereo viewer. I will get
>the exact model number the next time I am at a Canadian Tire store. The
>brand is Mastercraft.
>I will dig up the original instruction sheet and re-link the URL to
>Robert's page.

  I believe I found them on my lunch hour
visit to CT. It is called a Wide Angle Door
Viewer and the number is 46-8700-8. The ones
they had were black plastic rather than the
white I recall on your kit.

  AND! they were on sale for $7.49 CDN. So
I bought the last two they had.

  The other CT store in Saskatoon might still
have some. I could phone there if some US-ian
really wants a pair.

  BTW the prism gives you a right side up image.
The optics are such that a 90 degree rotation of
the viewer gives a 180 degree rotation of the
image. My poor brain can't quite figure out how
that works.

>BTW, there is another use for the cast-away parts. The prisms can be used
>to view an uncut stereo part in Realist format, transposed. I was keeping
>that a secret in case I tried to make and sell these, but I know I'll never
>have time in the near future. Should I warn all the Canadian Tire stores
>that a wild onslaught of 3d enthusiasts will be crashing their gates?

  Cool use for the extra parts!

Greg