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Nikon DSLR Cameras
D600/D610
D610 vs D7100
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<blockquote data-quote="WayneF" data-source="post: 329154" data-attributes="member: 12496"><p><strong>Re: 610 vs 7100</strong></p><p></p><p></p><p></p><p>I'm not aware of anyone showing that exact comparison, with that goal. It could be carefully done, and highly detailed 100% crop images should almost show it. </p><p></p><p>Because, in this specific case, both D7100 and D600 create images about 6000x4000 pixels, 24 mp. People imagine that must make them same, but they're not the same source.</p><p></p><p>19x13 inches at 300 dpi is 5700x3900 pixels, essentially the same size as 6000x4000. So images of that size cannot be compared without scrolling a HD monitor a few times, but two 100% crop images would also represent that size, and could be compared side by side in the way that you seek. </p><p></p><p> It would be showing the same images that you would print, but video is different than printing, in that the monitor only has maybe 100 dpi resolution (but 100% would be showing pixels one for one), but it has much greater color depth than ink dots can achieve, certainly inkjets. So it shows 3x larger, and probably looks better and brighter. Resampling to 1/3 size so the video shows more near actual printed size cannot show your actual pixels, it would lose 89% of the detail (no longer representative of 19x13). So the 100% crop is better, but it does not quite answer for actually printing them. And while 50% enlargement is not extreme, regardless, I'd expect to find differences if the scene is good, which proves the point (of not the same).</p><p></p><p>I know everyone wants to think that the 6000x4000 pixel images are obviously the same, if the numbers are the same, the results obviously must be the same... but that is too simple minded. The obvious fact does remain, DX image size is 2/3 the size of FX, and thus must be enlarged 50% more to compare at the same size. The 24 megapixels are the same and are not enlarged differently, but the original lens image on the DX sensor was a smaller size.</p><p></p><p>All the factors show this has to be true.... the so called DX crop telephoto effect due to greater enlargement, the DOF reduced CoC size due to greater enlargement (requiring DX image to be sharper to have the same apparent DOF blur), the simple dimensions in mm of the their sensors, etc.</p></blockquote><p></p>
[QUOTE="WayneF, post: 329154, member: 12496"] [b]Re: 610 vs 7100[/b] I'm not aware of anyone showing that exact comparison, with that goal. It could be carefully done, and highly detailed 100% crop images should almost show it. Because, in this specific case, both D7100 and D600 create images about 6000x4000 pixels, 24 mp. People imagine that must make them same, but they're not the same source. 19x13 inches at 300 dpi is 5700x3900 pixels, essentially the same size as 6000x4000. So images of that size cannot be compared without scrolling a HD monitor a few times, but two 100% crop images would also represent that size, and could be compared side by side in the way that you seek. It would be showing the same images that you would print, but video is different than printing, in that the monitor only has maybe 100 dpi resolution (but 100% would be showing pixels one for one), but it has much greater color depth than ink dots can achieve, certainly inkjets. So it shows 3x larger, and probably looks better and brighter. Resampling to 1/3 size so the video shows more near actual printed size cannot show your actual pixels, it would lose 89% of the detail (no longer representative of 19x13). So the 100% crop is better, but it does not quite answer for actually printing them. And while 50% enlargement is not extreme, regardless, I'd expect to find differences if the scene is good, which proves the point (of not the same). I know everyone wants to think that the 6000x4000 pixel images are obviously the same, if the numbers are the same, the results obviously must be the same... but that is too simple minded. The obvious fact does remain, DX image size is 2/3 the size of FX, and thus must be enlarged 50% more to compare at the same size. The 24 megapixels are the same and are not enlarged differently, but the original lens image on the DX sensor was a smaller size. All the factors show this has to be true.... the so called DX crop telephoto effect due to greater enlargement, the DOF reduced CoC size due to greater enlargement (requiring DX image to be sharper to have the same apparent DOF blur), the simple dimensions in mm of the their sensors, etc. [/QUOTE]
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Nikon DSLR Cameras
D600/D610
D610 vs D7100
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