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<p>[QUOTE=&quot;gsimonel, post: 4938075, member: 82549&quot;]Yes, you are correct. Technically, the white paper is a <i>diffuse</i> reflector (as opposed to a mirror, which is a <i>specular</i> reflector). I have the paper behind the coin, bouncing diffuse sunlight back onto it.</p><p><br /></p><p>But your comment has given me an idea. I wonder what would happen if I replaced&nbsp; the white paper with waxed paper and placed in in front of the coin. Then it would be a real diffuser. I think I will try this today and report back.[/QUOTE]</p><p><br /></p>

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