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brainiac
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Re: Romy's amazing ISO 3200 5D II shot


Liquidstone wrote:
brainiac wrote:
Maybe the DXO analysis is yet another per pixel analysis. That would explain why their results are inversely proportional to actual picture quality.



Maybe before commenting on DxO\'s results, you\'d like to read the following first:

DxO metrics - http://www.dxomark.com/index.php/eng/DxOMark-Sensor/DxOMark-metrics

Normalizing data for fair comparison - http://www.dxomark.com/index.php/eng/DxOMark-Sensor/Data-normalization


Thanks for those links. Very interesting. The article there that I thought was most telling was this:
http://www.dxomark.com/index.php/eng/Insights/More-pixels-offsets-noise!

This article lists signal to noise ratios for the latest and greatest Nikon and Canon bodies, and also SNR\'s adjusted for the resolution differences. With resolution taken into account, there is very little in it between the D3 and 1Ds3, which is consistent with my experience. It\'s still hard to get an idea of the real differences purely through numbers and graphs though.

This article supports what I have been banging on about for years: don\'t compare 100% crops from cameras with different numbers of pixels. It\'s misleading.



Nov 22, 2008 at 07:10 AM





  Previous versions of brainiac's message #6407760 « Romy's amazing ISO 3200 5D II shot »