Why doesn't DXOmark rate the Fuji sensors?

Started Nov 18, 2013 | Discussions thread
Beat Traveller
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Re: Why doesn't DXOmark rate the Fuji sensors?
In reply to Don Karner, Nov 18, 2013

Don Karner wrote:

I checked on DXOmark and found no sensor ratings for the Fuji X-E1 or X-M1 or X-Pro1. Really wanted to see how they stacked up against other manufacturers. What's the deal? Those cameras have surely all been out long enough to be rated. Any thoughts?

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Ol' Don in Broken Arrow

Here's what I think. DXOMark is not just a review website, they actually sell the technology they use to evaluate cameras: http://www.dxo.com/intl/image-quality-evaluation/dxo-analyzer

There's a lot of marketing spin in there claiming that they offer the best and most scientific precision for determining how much quality a device is capable of producing by testing the RAW file. When they've been pressed about why they don't test the X-trans or Foveon sensors, they claim the lack of a Bayer pattern means they can't demosaic the file. This is despite the fact that almost every major raw convertor now has found a way to do just that.

DXO go on about how reliable their tests are here: http://www.dxomark.com/About/What-is-DxOMark2/Test-result-reliability Basically, it all hinges upon the idea that the RAW file is nothing more than the sensor read-out, and by testing the RAW you're testing the sensor. But if they have to demosaic the file at some point (because by their own admission they can't test X-trans if they don't do so), a new variable is introduced into the equation - how effective the demosaicing algorithms are.

Basically, DXO's software is built not on precise testing of the sensor-read out, but by eliminating demosaicing technique as a variable. If they were to suddenly start testing Foveon and X-trans sensors, their own claims about their software as a precise way of bench-testing would be thrown out. So it seems to me that they've chosen to stick their fingers in their ears and ignore the other CFAs as an attempt to protect their own investment.

This is not to say that Foveon or X-trans are superior to Bayer, simply that they're different.

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