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Re: Realist viewer lenses

  • From: erker@xxxxxxxxxxxxxx (Greg Erker)
  • Subject: Re: Realist viewer lenses
  • Date: Tue, 13 Feb 1996 11:52:29 -0600

>The problem with the Hastings design is that it gives only
>a _very_ narrow field of view. Within this range they
>are superb, but they don't give anywhere near enought FOV
>for a Realist slide.

  On a different page of the Edmund catalog they sell
magnifiers made with these Hastings achromats.  The 7 power
one is listed at 40 mm fl and 33 mm field of view for
$41.50. No eye relief is specified so the FOV might be
with your eye up against the lens.

  33mm FOV is close to the Realist diagonal but wouldn't
work for 7 perf.

Greg



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