P3D On the copaying stereo slides thread...

["Dr. George A. Themelis" <DrT-3d@xxxxxxx>]

There are several possibilities:

1. In-camera duplicates (this simply means taking a lot
   of pictures, but as Linda and others said, sometimes
   there is only one GREAT picture in the lot)

2. Commercial duplication:  Almost any lab will do it for
   you, if mounted in regular 2x2 mounts.  Some labs might
   be willing to try duplicated slides in their stereo
   mounts.

3. Duplication by other stereo enthusiasts, like Ron Labbe,
   who know how this is done.

4. Do-it yourself duplication.

In this last category we have the following possibilities:

4.1. Using your regular SLR system equipped with a macro lens, 
     bellows and slide copying unit.  I have used my Minolta
     equipment for this purpose by my interest is in improving
     the image, not making a good duplicate.

4.2. Special slide duplicating units that include a lens that
     attaches to your camera.

4.3. Special slide duplicating units that include a camera,
     lens, bellows and illumination.

An example of 4.3 is the Repronar slide copying unit that I
offer for sale in sell-3d.  You can look at the pictures and
text here:

http://home.att.net/~drt-3d/repronar/sale.htm

This unit can be used to copy a variety of transparent 
materials from regular slides, to stereo slides, to VM reels.

George Themelis