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<blockquote data-quote="BackdoorArts" data-source="post: 252211" data-attributes="member: 9240">It's very possible to quantify, and they specifically how they did in the second paragraph if you read the article - &quot;Based on independent DxOMark lab test results, when looking at overall image quality when shooting at high ISOs&quot;.&nbsp; This is lens independent testing of sensor quality, which should yield an all other things being equal result.&nbsp; What credence you put in those results is up to the individual, but obviously there are combinations of glass and bodies that would change all of this.Looking thru DxOMark's site it would seem that Adorama's results are based on the Sports-Low ISO numbers <a href="http://www.dxomark.com/Cameras/Ratings/List-view" target="_blank">listed here</a>, with the filtering off of discontinued cameras (D600) and anything considered a brand's &quot;Professional&quot; body, which is why the D3s, D4 and Canon 1Dx are not listed.&nbsp; It's a simple regurgitation of test results we've seen before meant to aid the high end consumer/enthusiast in making their choice.&nbsp; Granted, it's all lab perfect results, and anyone can come up with real world cases that might show a different set of results, but it would take a lot of poking around and knowledge of optics to poke holes in their methodology, and given that no one has bothered I would have to assume that the science behind the measurements is solid.&nbsp; But, as they say in sports, it's not about how you look on paper, which is why they bother to play the game.</blockquote>

[QUOTE="BackdoorArts, post: 252211, member: 9240"] It's very possible to quantify, and they specifically how they did in the second paragraph if you read the article - "[I]Based on independent DxOMark lab test results, when looking at overall image quality when shooting at high ISOs[/I]". This is lens independent testing of sensor quality, which should yield an [I]all other things being equal[/I] result. What credence you put in those results is up to the individual, but obviously there are combinations of glass and bodies that would change all of this. Looking thru DxOMark's site it would seem that Adorama's results are based on the Sports-Low ISO numbers [URL="http://www.dxomark.com/Cameras/Ratings/List-view"]listed here[/URL], with the filtering off of discontinued cameras (D600) and anything considered a brand's "Professional" body, which is why the D3s, D4 and Canon 1Dx are not listed. It's a simple regurgitation of test results we've seen before meant to aid the high end consumer/enthusiast in making their choice. Granted, it's all lab perfect results, and anyone can come up with real world cases that might show a different set of results, but it would take a lot of poking around and knowledge of optics to poke holes in their methodology, and given that no one has bothered I would have to assume that the science behind the measurements is solid. But, as they say in sports, it's not about how you look on paper, which is why they bother to play the game. [/QUOTE]

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