Mirek Elsner Offline Upload & Sell: Off
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p.1 #1 · p.1 #1 · Bayer masks and DxO color depth measurements | |
There is rare, but consistent information on photography forums suggesting, that some camera makers are tuning their sensors for high ISO performance (Canon, Nikon?) and some for better ability to separate hues (MF backs, Leica, Sony Alpha?). This tuning is apparently achieved by different spectral characteristics of R, G and B filters in the CFA array. There is also the DxO Mark web site, which makes available their "color depth" data, which according to their description measures the same thing. Their results, however, do not indicate any special hue sensitivity/color depth of Leica or Alpha cameras. In fact, Nikon D800, for example, scores higher. I spent hours on the internet trying to find some explanation for this discrepancy, but I still don't have any satisfactory answer. Can anybody help me understand what I am missing?
I realize that DxO Mark results spun many heated discussions before, but these discussions usually revolve around their aggregate scores, not individual detailed measurements. I am concerned in one particular individual measurement, that looks reasonable, and I hope this question is not going to generate too much negative reaction.
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