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T3D Re: Iris placement

  • From: William Carter <wc@xxxxxxxxxxxx>
  • Subject: T3D Re: Iris placement
  • Date: Wed, 12 Nov 1997 11:30:28 -0800 (PST)
The duliable John B. writes:
> If you don't want vignetting when you stop down, 
>you put the iris where the chief ray crosses the optic axis.

When photographing through the eyepiece of an existing optical system, for
instance a microscope, would one be creating an aperture stop where the exit
pupil of the ocular coincides with the entrance pupil of the camera lens???


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End of TECH-3D Digest 233
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