Guys, no matter what facts you have or what you say it's not going to help much, lol.I know, I know. But...the windmill is right there, just sticking straight up out of the field and begging to be tilted at and charged...
Really, the D3x has a 12-bit ADC? Quick, you'd better call Nobuyoshi Gokyu (President & CEO of Nikon, Inc., but I'm sure you know that) and tell him that the features page for the D3x
, which states, "Fast 14-bit A/D conversion incorporated onto the image sensor
," is wrong and needs to be corrected immediately, based on your
thorough understanding of the read out from Nikon sensors.
So, if we can agree that Nikon is correct about their own D3x specifications, and that you, despite your extensive understanding and studying, are wrong about their D3x specifications, let's just say that the D3x has a 14-bit ADC and move on...
In that case, DxO's measurements
show a very decent 12.84 EV of DR for the D3x. Their 'Landscape Score', however, is an artifically inflated 13.65 EV - still technically possible (unlike the D800), but again, artifically inflated as a direct result of a flawed method of data analysis.
Study the subject, indeed. Oh, puuullllleeeeeeeze. It's almost as if I didn't
have a day job that includes both analyzing quantitative image analysis data and managing a large group of scientists who do the same...
Sorry but you are wrong
D3x sensor is the same as in the Sony A900, there has been much discussion whether it is a 12 or 14-bit column ADC and if Nikon has changed it . In the Sony's sensor is it determined that is a 12-bit column ADC.
Whether it's a 12 or 14 bit ADC in Nikon . In the d3x . D90, d7000, d800 it takes place two readouts of data and these data are merged so the number of dynamic stops are higher than the number of stops from a normal read out to a common ADC.
With Canons sensor layout it's different . Based on the 18MP APS-C pixel with a very good and very expensive external ADC - probably 16 bit could give them better "more mega pixel camera " and DR, if they can deal with the banding. One sensor expert always maintains that they (Canon) could deal with banding by leaving larger areas of masked black pixels (allows them to make the required changes in line by line and column by column gain.
So do not blaim DXO meassurements as incorrect when Canon is showing poor data like DR and other meassurable parameters.