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<p>[QUOTE=&quot;-jeffB, post: 1394035, member: 27832&quot;]I haven&#039;t done much macro work with point-and-shoots, but for the Canon setup, I usually target between f/11 and f/16. Even going as low as f/8 starts to make the focal zone too shallow, although for coins you might get away with it. The sad part is that, at least with a 1.6x sensor like the Rebels have, you start losing definition due to diffraction by f/16. For sharpness, f/8 to f/11 seems to be the sweet spot -- but again, it doesn&#039;t always get everything you want in focus.[/QUOTE]</p><p><br /></p>

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