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<p>[QUOTE=&quot;Info Sponge, post: 773362, member: 20538&quot;]I bet comic book collectors don&#039;t have anywhere near this much fun.</p><p><br /></p><p>So have I got it right that when toning happens over an optically rough surface, such as the kind that makes a coin lustrous, the color that comes out is the result of multiple angles, just as the cartwheel effect on a lustrous coin is the sum of many different reflections? So that where a simplified model of a mirror-like corrosion layer over a mirror-like coin surface would tell you to expect iridescence, a more realistic one that takes scattering within the thin layer into account along with diffuse reflection from the coin surface tells you to expect colors that don&#039;t change with angle?</p><p><br /></p><p>Does a proof start with polished dies and planchets? Does that mean there&#039;s less flow and fewer flow lines in the fields on a proof coin? Do proofs tone differently? Is that why Lehigh96 said that toned proofs were especially challenging to get good photographs of?</p><p><br /></p><p>Thanks to everyone for their time! To put it in 1950&#039;s-compatible language, &quot;Gosh, I sure like this place!&quot;[/QUOTE]</p><p><br /></p>

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