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How many grades can be reasonably assigned based on photos?
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<p>[QUOTE="calcol, post: 4334903, member: 77639"]Anyone who has much experience with coin photos realizes that photographic technique, especially lighting, is crucial to coin appearance and apparent grade. A MS65 can be made to look like an AU55 and vice versa. And this is without post-photographic manipulation, which can greatly extend the apparent grade of a coin ... up or down.</p><p><br /></p><p>I generally ignore GTG posts because photographic technique is such a big factor. To me, GTG means Goofy To Guess. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /></p><p><br /></p><p>I have about 5 grade "bins" for coins based on photos: MS/AU, AU/EF/VF, VF/F/G, G/P/damaged, damaged. Of course they overlap and have fuzzy edges as well.</p><p><br /></p><p>For some auction sites, like Heritage, I have enough experience with their photos and the actual coins that I can relate the photos to reality most of the time. For more expensive coins, Heritage posts two types of photos: whole slab and close-up. The difference between the two pairs of photos can be dramatic.</p><p><br /></p><p>Cal[/QUOTE]</p><p><br /></p>
[QUOTE="calcol, post: 4334903, member: 77639"]Anyone who has much experience with coin photos realizes that photographic technique, especially lighting, is crucial to coin appearance and apparent grade. A MS65 can be made to look like an AU55 and vice versa. And this is without post-photographic manipulation, which can greatly extend the apparent grade of a coin ... up or down. I generally ignore GTG posts because photographic technique is such a big factor. To me, GTG means Goofy To Guess. :) I have about 5 grade "bins" for coins based on photos: MS/AU, AU/EF/VF, VF/F/G, G/P/damaged, damaged. Of course they overlap and have fuzzy edges as well. For some auction sites, like Heritage, I have enough experience with their photos and the actual coins that I can relate the photos to reality most of the time. For more expensive coins, Heritage posts two types of photos: whole slab and close-up. The difference between the two pairs of photos can be dramatic. Cal[/QUOTE]
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