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<p>[QUOTE=&quot;Beefer518, post: 7280248, member: 87737&quot;]I&#039;ll add my 2¢ to the photography end of this discussion.</p><p><br /></p><p>You&#039;re in AP (Aperture Priority), but try going full Manual. You&#039;re at 1/80 for shutter speed, which is borderline &quot;safe&quot; for a 100mm lens handheld. If you aren&#039;t using a tripod, use one. A lot of the time, oof (out of focus) is actually camera shake. If your shutter speed number is smaller then your lens&#039; focal length, a tripod should really be used. With a tripod, you can use any shutter speed, even hours long. </p><p><br /></p><p>Lower your ISO speed. 6400 can introduce sensor noise. 100 ISO seems to be Canon&#039;s cleanest speed, but 200 is good too. </p><p><br /></p><p>Use the 2 second (or even 10 second) shutter delay. What this does is allows the camera to stop micro-shaking from your finger pressing the release. Alternatively, use a remote control release.</p><p><br /></p><p>I too have the Canon 100mm Macro, but I use a Mamiya 120mm Macro on my 50D. The 100mm is a full frame lens, for 35mm, whereas the Mamiya is made for 645 film, which is almost 3x larger in area. In a nutshell, image quality deteriorates the closer you get to the outer edges of a lens&#039; image area, and sine the 645&#039;s edge is so much further away from the center, and the crop sensor on my 50D is asking for less then 35mm film does, I get edge-to-edge sharpness.</p><p><br /></p><p>Manual focus is key. Use live view at 10x, and get that focus crisp. The dof (depth of field) at f/8 will be enough to cover a coin from highest device to lowest field.</p><p><br /></p><p>By using Live View for focusing, it automatically takes care of the Mirror Lock-Up, unless you exit LV. But even still, use the time delay or a remote.</p><p><br /></p><p>Are you using additional lighting, or only ambient? Get 2 cheap LED lamps from Walmart, and get them in close, and I mean within 2 inches or so to the coin. It will really open up your shots. </p><p><br /></p><p>The Rebel is a fine camera, and upgrading is really unnecessary. Image quality is determined by the following (and in this order); 1) photographer&#039;s ability 2) lens quality 3) camera body</p><p><br /></p><p>Just my opinion. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie70" alt=":panda:" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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