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From: "Robert Ayers" <astroayers@No-Spam>
Subject: Re: [TAC] 58mm Plossl question and measuring pupils
> So, you cut a long piece of paper into a wedge, say 3mm wide at one
> end and 12mm wide at the other. Do the above experiment, after you
> are adapted, and find the spot along the wedge that just blocks the
> object.
> Measure the wedge at that point and you have your pupil diameter.
~ how distant and large should the point source be? and, is pupil diameter
the same as the exit pupil? Tryin' to keep up.
---
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Received on Wed Aug 27 16:42:34 2008
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