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<p>[QUOTE=&quot;SuperDave, post: 2546862, member: 1892&quot;]You can&#039;t adjust for the perspective distortion inherent in macro photography, marked and all out of proportion to the angle of view. And really deceptive, capable of affecting only a small percentage of the surface of the pictured coin depending on magnification, angle, focal length and distance from the subject.</p><p><br /></p><p>Admittedly, we seem to have very little of that to worry about here; the OP image looks to be pretty square. How do you test for that when your eyes might be deceiving you? Capture it into an editing program, and attempt to crop it with the cropping tool forced to &quot;square.&quot;</p><p><br /></p><p>In this case, the OP image is off. Only a few pixels, but it&#039;s off. Does that introduce enough distortion to make the difference? I don&#039;t know; the image isn&#039;t good enough.</p><p><br /></p><p>Which is my point.</p><p><br /></p><p>And even if the coin&#039;s details are adjudicated &quot;perfectly&quot; accurate, all that eliminates is the wrong coin being altered to the right look. It doesn&#039;t eliminate copper-plated or -washed Steelies, which we&#039;ve all seen dozens of.</p><p><br /></p><p><br /></p><p><br /></p><p>Exactly. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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