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| p.2 #16 · Canon 1D X: The best of Canonís full-frame sensors |
What surprises me all of the time is the overall ratings, not the graphs. I've always found them confusing.
Look at the graphs of these cameras. The 1dx is a lot better or a bit better at everything except a tiny reduction in DR at ISO100 and that's only worth 2 points on their overall scale?
Now add the d800 in. The 1dx is pretty much as good at everything - better at high ISO, worse at low ISO DR, small difference on low ISO colour sensitivity - and the d800 gets a score of 95? So they are...Show more →
The overall core should be ignored beacuse it has a weighting.
The low light ISO score should also be ignored because of the way it is calculated. A limit is defined for 3 different measurements. What ever measurement that goes below the limit first, defines the low light ISO. This doesn't match with reality, because in reality you can trade the noise vs color in processing. If the low light ISO were to mean anything, it should be calculated as a weighting between SNR, DR anc Color Sensitivity.
I am not defending the scores, they should be ignored, but just if you wonder how they get there....
For the lens tests, I have no idea how they get results that don't match other test sites or experiences. IMO, DXO ar capable of measuring sensors, but not lenses. Their horrible lens measurements should not be used as an argument against their sensor measurements.
Back to the 1DX, it really has the best high ISO Dynamic Range in the world. The read noise at high ISO can be calculated back to 1.3 e-, and that is the lowest read noise for any DSLR to date.