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<p>[QUOTE=&quot;Pickin and Grinin, post: 7431397, member: 73995&quot;]That one is difficult to do with static images on a computer screen. It can be done if the photographer is not taking glamour shots.</p><p>The first thing I look for is disturbances in the luster. This is not only disturbances on the high points of a coin. This is disturbances in the luster on the coin as a whole.&nbsp; IE, evidence of friction.</p><p>Friction or evidence of circulation tends to leave a dull appearance in the open areas and brilliance in the protected areas. This when lightly circulated will leave halos around the devices, and in every nook and cranny of the coin.</p><p>It takes looking at a lot of coins in hand to start to see what is an UNC and what is AU or Circ. Most of what a grader does is tilting the coin to find dullness or evidence of friction in the luster, something that a lot of still photos &quot;unless&quot; in high definition won&#039;t show you.</p><p><br /></p><p>If we take the coin above, there is zero difference between the field luster and the devices luster. It does have some minimal contact marks. But that is only the difference in grade from 60 to 70.[/QUOTE]</p><p><br /></p>

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