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<p>[QUOTE=&quot;Dave M, post: 2093139, member: 17469&quot;]Doug, I don&#039;t know whether you&#039;ve already got this info, but thought I&#039;d post these two pics. Please note I am an experienced photographer but quite new at macro and coins...</p><p><br /></p><p>The first is just for scale:</p><p>[ATTACH=full]392382[/ATTACH] </p><p><br /></p><p>This second shot is using the Canon100mm EF Macro on a 1.3x Canon camera, as close as you can get, with 100% crop (you probably need to click on it to get it full size). Shot at f/16, which appears to be the smallest aperture I can use before diffraction starts to make it worse (the lens goes to f/32).</p><p>[ATTACH=full]392381[/ATTACH] </p><p>This is not near as close as some of the closeup shots I&#039;ve seen of yours through a microscope. Also the depth of field is quite clearly problematic here, and I didn&#039;t play with any focus stacking to try to fix it. On the same vein, my tripod setup shakes quite a bit when used for this kind of macro, and I suspect I&#039;d be much better off using one of the expensive rail focusing mechanisms if I were really to want to focus stack this image.</p><p><br /></p><p>In any event, I just posted these in case you were wondering what you&#039;d get with one of Canon&#039;s good macro lenses. I suppose the 200mm would be twice this good, at about 4-5x the cost.[/QUOTE]</p><p><br /></p>

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