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<p>[QUOTE="rmpsrpms, post: 1533383, member: 31773"]OK...Here's the comparison.</p><p><br /></p><p>Subject is a MS65 DMPL 1883CC Morgan Dollar. Lens is a 3x Nikon objective. Lighting is by a single diffused Jansjo LED, which has a color temp around 3000K. I used Tungsten white balance (3200K I believe) on both cameras. </p><p><br /></p><p>DOF at 3x is insufficient for a single image, so I did a simple 3-image stack. I did the same workflow for both cameras:</p><p><br /></p><p>Focus on top of denticles; shoot;</p><p>Focus on top of date features; shoot</p><p>Focus on field around date; shoot </p><p>Focus Stack using CZP (Quick Align; Do Stack algorithms)</p><p>Crop to original size (CZP adds extra pixels)</p><p>Downsize 4x for full frame web publishing</p><p>100% crop 800x800 for pixel-level comparisons</p><p><br /></p><p>No sharpening at any point</p><p><br /></p><p>Here is the Nikon D7000: Full field and 100% Detail:</p><p><img src="http://i943.photobucket.com/albums/ad273/rparkhurst/D7000Full.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /><img src="http://i943.photobucket.com/albums/ad273/rparkhurst/D7000Detail.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>And here is the T2i: Full field and 100% Detail</p><p><img src="http://i943.photobucket.com/albums/ad273/rparkhurst/T2iFull.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /><img src="http://i943.photobucket.com/albums/ad273/rparkhurst/T2iDetail.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>Note that the full frame images are not much different. Color rendition is a bit different but within a reasonable range. Both images are pretty sharp, and either one is acceptable. A bit of post-downsize sharpening, which is a normal thing to do (I did not sharpen on purpose for better differentiation), would make them completely adequate for most purposes. </p><p><br /></p><p>But the 100% pixel images are a different story. This lens is nowhere near the sharpest available, yet the differences between cameras completely swamp any weakness in the lens. </p><p><br /></p><p>Now, I could have used a flash with delayed trigger, and with a single light like I've used that would be an option. However, getting a flash in "close" and "high" is a tough proposition, and I'm not willing to make those tradeoffs if I get them for free with the EFSC functionality of the T2i.[/QUOTE]</p><p><br /></p>
[QUOTE="rmpsrpms, post: 1533383, member: 31773"]OK...Here's the comparison. Subject is a MS65 DMPL 1883CC Morgan Dollar. Lens is a 3x Nikon objective. Lighting is by a single diffused Jansjo LED, which has a color temp around 3000K. I used Tungsten white balance (3200K I believe) on both cameras. DOF at 3x is insufficient for a single image, so I did a simple 3-image stack. I did the same workflow for both cameras: Focus on top of denticles; shoot; Focus on top of date features; shoot Focus on field around date; shoot Focus Stack using CZP (Quick Align; Do Stack algorithms) Crop to original size (CZP adds extra pixels) Downsize 4x for full frame web publishing 100% crop 800x800 for pixel-level comparisons No sharpening at any point Here is the Nikon D7000: Full field and 100% Detail: [IMG]http://i943.photobucket.com/albums/ad273/rparkhurst/D7000Full.jpg[/IMG][IMG]http://i943.photobucket.com/albums/ad273/rparkhurst/D7000Detail.jpg[/IMG] And here is the T2i: Full field and 100% Detail [IMG]http://i943.photobucket.com/albums/ad273/rparkhurst/T2iFull.jpg[/IMG][IMG]http://i943.photobucket.com/albums/ad273/rparkhurst/T2iDetail.jpg[/IMG] Note that the full frame images are not much different. Color rendition is a bit different but within a reasonable range. Both images are pretty sharp, and either one is acceptable. A bit of post-downsize sharpening, which is a normal thing to do (I did not sharpen on purpose for better differentiation), would make them completely adequate for most purposes. But the 100% pixel images are a different story. This lens is nowhere near the sharpest available, yet the differences between cameras completely swamp any weakness in the lens. Now, I could have used a flash with delayed trigger, and with a single light like I've used that would be an option. However, getting a flash in "close" and "high" is a tough proposition, and I'm not willing to make those tradeoffs if I get them for free with the EFSC functionality of the T2i.[/QUOTE]
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