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Re: [APML] Moire-like patterns on E200

To: astro-photo@seds.org
Subject: Re: [APML] Moire-like patterns on E200
From: Chris1011@aol.com
Date: Wed, 3 Apr 2002 12:53:38 EST
Reply-To: astro-photo@seds.org
Sender: owner-astro-photo@seds.org

In a message dated 4/3/2002 9:08:24 AM Pacific Standard Time, tomdiana@acegroup.cc writes:

So Newton rings can be caused by imperfections WITHIN the film?!

Well, actually it would be a perfection of the film. The film is so plane parallel that it shows Newton rings. If it was more wavy, or if the two surfaces were not so parallel to each other, the rings would be so close together that they would be unresolvable. Does the image next to this one also show rings?

Roland Christen

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