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P3D Re: View-Master vs. Realist

  • From: fj834@xxxxxxxxxxxxxxxxxxxxx (Dr. George A. Themelis)
  • Subject: P3D Re: View-Master vs. Realist
  • Date: Thu, 30 Jul 1998 16:50:36 -0400 (EDT)
>Another thing about View-Master is that the lens spacing of 61.5 mm is
>much closer to my eye spacing than the 70mm of the Realist.  No wonder
>the View-master images look more real (ortho) to me.

How about "strech"? 

Two conditions must be met for ortho: 

1. Interaxial = interocular (got the terminology right this time? :-))
2. FL of taking lens = FL of viewing lens

Grant points out to #1.  But the FL of the VM cameras is smaller than
the Realist while the FL of the viewers are comparable (at least for
inexpensive viewers), hence we have a problem with #2.

-- George Themelis


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