[photo-3d] Re:Kodaslide II (My use for stereo photography)

[Peter Homer <P.J.Homer@xxxxxxxxxxxxx>]

>We are working on the same idea, to compare a slide to the site where
>it was taken.
>I had been looking for zoom viewfinders to use for one eye while
>looking at the slide with the other in the viewer. Binoculars make
>the image look larger but the slide viewers make them look smaller.
>You have to look at them both with the same magnification.  It was
>getting more complex (and expensive) then I wanted. Then I got the
>idea to do them both with a 1X magnification thus removing the need
>for the zoom viewfinder.  The 35 MM lens viewer should work with any
>slide taken with 35 MM lenses.
>
>Another use would be to find the origonal site where some old stereo
>view was taken many years ago with some camera unknown to you.  You
>could convert the view to a realist slide before going there but
>would not know the effective focal length.  You would be back to
>needing some sort of zoom viewfinder.  I would still like to do that
>too.

That is the sort of thing I am hoping to do, and then use the device with
the slide removed to take a new view of the same scene for then and now
dissolves.
Last year on vacation in Chamonix I experimented with the Viewmaster
National Geographic binocular viewer and some amateur viemaster views of
the region.
This viewer only allows you to flip from the real view to the slide
alternately and as the slided were not magnified views I could not really
make much comparison. The article in stereo-world about this viewer
mentioned an earlier Japanese viewer which was much simpler in construction
and was also a toy  but it probably allowed the real view to be viewed
straight through the slide.

>There is another problem.  The light level from the viewer must be
>about the same as that from the view.

If the viewer component is stealing the light from the binocular view would
they not be about the same light level?

>Chuck
 P.Homer