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1945 War Nickel Polished?
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<p>[QUOTE="SuperDave, post: 2471871, member: 1892"]The problem with zoom on smartphone cameras is it's <i>digital</i>, not <i>optical</i>. The camera is not physically changing the optics for greater magnification, it's just computing what the coin *should* look like if it were larger on the sensor. There's only so many pixels on a camera sensor, and the phone's processor is arbitrarily adding more based on what it <b>thinks</b> ought to be there in order to make the image larger.</p><p><br /></p><p>Enlarging a coin image via digital zoom will <b>always</b> make for a less-detailed image, especially when done by the (relatively "dumb") processor in a smartphone by comparison to a desktop computer.</p><p><br /></p><p>If we use the Morgan I posted above as an example of the best the phone's camera can do (and that was shot with a 4S, although the 5's camera isn't a huge improvement), a Nickel should come out around 550 pixels in diameter, sharply-focused. About like so:</p><p><br /></p><p>[ATTACH=full]520189[/ATTACH] </p><p><br /></p><p>Not huge, but large enough to get some information across.</p><p><br /></p><p>Of course, it's not an "Easy Button" operation - you'll have to fiddle with focus distance, lighting and getting the camera square to the coin - but your phone's camera ought to be able to produce images quite good enough to get your point across.[/QUOTE]</p><p><br /></p>
[QUOTE="SuperDave, post: 2471871, member: 1892"]The problem with zoom on smartphone cameras is it's [I]digital[/I], not [I]optical[/I]. The camera is not physically changing the optics for greater magnification, it's just computing what the coin *should* look like if it were larger on the sensor. There's only so many pixels on a camera sensor, and the phone's processor is arbitrarily adding more based on what it [B]thinks[/B] ought to be there in order to make the image larger. Enlarging a coin image via digital zoom will [B]always[/B] make for a less-detailed image, especially when done by the (relatively "dumb") processor in a smartphone by comparison to a desktop computer. If we use the Morgan I posted above as an example of the best the phone's camera can do (and that was shot with a 4S, although the 5's camera isn't a huge improvement), a Nickel should come out around 550 pixels in diameter, sharply-focused. About like so: [ATTACH=full]520189[/ATTACH] Not huge, but large enough to get some information across. Of course, it's not an "Easy Button" operation - you'll have to fiddle with focus distance, lighting and getting the camera square to the coin - but your phone's camera ought to be able to produce images quite good enough to get your point across.[/QUOTE]
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