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lens matching

  • From: bercov@xxxxxxxxxxx (John Bercovitz)
  • Subject: lens matching
  • Date: Mon, 27 Apr 98 15:06:06 PDT
I just had a goofy idea.  Take one lens off and reverse it
and attach it to the other.  Set a lighted target behind
one and a screen behind the other.  The target and screen
will have to be exactly the same distance from their
respective lenses.  Measure the image size.  It should be
the same as the target.
John B