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Re: 10x Magnifiers for Stereo Viewer

  • From: Stephen Kearney <neff123@xxxxxxxxxxxxxxxxxxx>
  • Subject: Re: 10x Magnifiers for Stereo Viewer
  • Date: Mon, 26 Feb 1996 10:42:19 -0800
>As for field of view, the Realist format has a 31 mm diagonal so if 
>the  10X magnifier covers that format, and has a 28 mm focal 
>length, its field  of view is 2(arctan 31/(2*28)) = 58 degrees.  
>There are magnifiers with  that field of view but all the ones I 
>know of have a tremendous amount of  distortion, readily noticed.

This is something I still don't understand. How does one determine how
large the lens diameter must be? What is a a more realistic field of view
figure for typical lenses?

_____________________________________________
Stephen Kearney : neff123@xxxxxxxxxxxxxxxxxxx
    http://garnet.berkeley.edu/~neff123


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