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Professor Berkovitz is correct!

  • From: fj834@xxxxxxxxxxxxxxxxxxxxx (Dr. George A. Themelis)
  • Subject: Professor Berkovitz is correct!
  • Date: Fri, 10 Nov 1995 01:44:16 -0500
Once again, John B. is right!  I checked Realist double-element lenses and
I was able to see a very faint and small third reflection caused by the
interface between the two elements.  I could not see this reflection in a
Realist single-element lens.  It helps to have a black background behind
the lens.

The next Inside-3d will have list of 5 different ways to tell a single vs.
double-element lens in a stereo slide viewer, plus info on well-known
viewers that were supplied with both types of lenses.

George Themelis


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