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<p>[QUOTE="rmpsrpms, post: 2401966, member: 31773"]Very nice SD. The 50mm SK definitely blows the El-Omegar away.</p><p><br /></p><p>The only issue with 50mm lenses on bellows is they will limit the max coin size you can image. For most bellows, 50mm will limit you to Halves, or even Quarters, as the largest coin that can be framed. </p><p><br /></p><p>So the advice is if you want to try 50mm lenses (which are available generally very cheap for entry level to get your feet wet) you should pair them with short-extension bellows. I've built a few setups for folks using 50mm and 63mm lenses that could only go up to Nickels, but they were Cent collectors and didn't care at all.</p><p><br /></p><p>Two final notes...first, shorter lenses mean more compact setups because the working distance is also reduced. All dimensions scale with the focal length. So this means if you can get a short bellows that allows framing the largest coin size you care about, then the whole setup can be very small and compact. Desk-friendly...and second, shorter lenses give you more flexibility in getting higher magnification for variety detail imaging, for the same bellows extension. 50mm is a nice focal length that can allow you to get up to 2:1 with most bellows. A good quality 50mm like the Componon-S lends itself to use with a 2x teleconverter while still giving good sharpness. This means that you can achieve up to 4x magnification with the same lens you use for full-coin imaging up to Dollars! What a flexible setup.[/QUOTE]</p><p><br /></p>
[QUOTE="rmpsrpms, post: 2401966, member: 31773"]Very nice SD. The 50mm SK definitely blows the El-Omegar away. The only issue with 50mm lenses on bellows is they will limit the max coin size you can image. For most bellows, 50mm will limit you to Halves, or even Quarters, as the largest coin that can be framed. So the advice is if you want to try 50mm lenses (which are available generally very cheap for entry level to get your feet wet) you should pair them with short-extension bellows. I've built a few setups for folks using 50mm and 63mm lenses that could only go up to Nickels, but they were Cent collectors and didn't care at all. Two final notes...first, shorter lenses mean more compact setups because the working distance is also reduced. All dimensions scale with the focal length. So this means if you can get a short bellows that allows framing the largest coin size you care about, then the whole setup can be very small and compact. Desk-friendly...and second, shorter lenses give you more flexibility in getting higher magnification for variety detail imaging, for the same bellows extension. 50mm is a nice focal length that can allow you to get up to 2:1 with most bellows. A good quality 50mm like the Componon-S lends itself to use with a 2x teleconverter while still giving good sharpness. This means that you can achieve up to 4x magnification with the same lens you use for full-coin imaging up to Dollars! What a flexible setup.[/QUOTE]
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A new piece of kit for coin photography....
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