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<p>[QUOTE="rmpsrpms, post: 2636403, member: 31773"]OK, I feel another tip coming on...maybe this one is #12:</p><p><br /></p><p>First, download Digital Photo Professional from Canon. It should be a free download. Look on an old program download site if your computer is older. Nikon ViewNX can do all the same things I believe. </p><p><br /></p><p>Shoot your coin on a known background. Best is an 18% gray card, but a white index card also works. Then try shooting with auto white balance. If the RGB values are still way off, then experiment with different WB settings until you get something fairly close. You can determine RGB values by mousing over the white area in your photo editing software. If RGB are within a couple % of each other, you're in good shape. If not, then using the histogram, adjust the R channel until it matches G, then do the same for B channel. Double-check by mousing over the white areas, and they all should show nearly equal RGB values.[/QUOTE]</p><p><br /></p>
[QUOTE="rmpsrpms, post: 2636403, member: 31773"]OK, I feel another tip coming on...maybe this one is #12: First, download Digital Photo Professional from Canon. It should be a free download. Look on an old program download site if your computer is older. Nikon ViewNX can do all the same things I believe. Shoot your coin on a known background. Best is an 18% gray card, but a white index card also works. Then try shooting with auto white balance. If the RGB values are still way off, then experiment with different WB settings until you get something fairly close. You can determine RGB values by mousing over the white area in your photo editing software. If RGB are within a couple % of each other, you're in good shape. If not, then using the histogram, adjust the R channel until it matches G, then do the same for B channel. Double-check by mousing over the white areas, and they all should show nearly equal RGB values.[/QUOTE]
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