DXO claim 1DX2 new class leader

[LSXPhotog]

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These 2 APS-C sensors really fall behind the 1DX, yet the overall score would give the impression that they're competitive...to me, that's dishonest.

DxO have performed tests in their labs that are repeatable and measurable to come to these conclusions.

What tests have you yourself done with all three cameras to show otherwise?

Just using the data they've provided the public sets the two lenses apart man. I don't need to pick up anything and test anything if the information they themselves have shown doesn't make sense to anyone on how the overall scores are this close to each other. Another good example would be the Sigma 50mm Art being mounted on the D810 versus the 5DS and the Canon mount version outperformed it yet the overall score showed the Nikon mount winning...how is that even possible? This is where my personal questioning of their integrity comes from.

 

[LSXPhotog]

To get an idea of the "sameness" in Canon sensors, go to this link and select 6D, 5DII, 5DIII.
Then select 1DX and 5DsR.

Hey, you have chosen to ignore my post regarding DPReview's comparison:

"in this instance, eye observations do not agree with DPReview's conclusion... and neither do the numbers from DXO. So how????"

I suppose if no one has any objection, we can conclusively state DPReview's statements are not based on unbiased observations and measurements, but are instead based on pure biasness and BS.

I think, their class leading low light image quality is based on JPEG comparison. From their review:
"The new sensor offers class-leading low light image quality, especially due to an improved JPEG engine, but Raws aren't the most flexible when shooting high contrast scenes."

But they claimed DR at high iso better than 1dx2 which is also not completely true. Based on DXO, D5 has more DR only with couple of ISO's. Bill is yet to publish his DR calculations for 1dx2. Not sure what values they are referring to.

"Canon's new 1D-X II actually supersedes the base ISO dynamic range of the D5, thought it falls behind at high ISO."

Their D5 review definitely doesn't follow typical pattern they follow with Canon cameras like 7D2, 5D5 and 80d. They made very big deal out of low ISO DR for 7d2. But they said D5 matches with 6d. They started 80d review by claiming 80d video specs are inferior compared to competition. But ignored D5 specs compared competion (1dx2).

"But as with other Nikon DSLRs that shoot video, the D5 is first and foremost a stills camera, with video being a bonus if you need to take the occasional clip."

Which is the definition of biased. DPReview does this with their reviews BIG time and I don't even think they realize it either...

 

[3kramd5]

Another good example would be the Sigma 50mm Art being mounted on the D810 versus the 5DS and the Canon mount version outperformed it yet the overall score showed the Nikon mount winning...how is that even possible?

In establishing the composite score of a lens, DxO considers the dynamic range of the camera to which the lens is mounted. Similarly, they consider the resolution of the camera in establishing their sharpness figure.

That's the how.

 

[StudentOfLight]

Eyes are easily deceived, hence optical illusions. The brain is also bad when it comes to "remembering."...

In the end, the best proof of something as absolute is math and science - not your eyes or brain. Ask any scientist about how reliable "eye witness" statements are vs something that is measurable/recordable.

Errr... in this instance, eye observations do not agree with DPReview's conclusion... and neither do the numbers from DXO. So how????

I don't know what you were looking at or comparing as you only posted the DXO graph.
I've attached a screenshot of the DPR RAW studio samples for the D5 and 1Dx-II.

What we are looking at here is the roughly 18% grey patch on the colorchecker (which corresponds with DXO's SNR-18% graph)

Lenses used in the DPR studio test:
Canon 85/1.8 vs Nikon 85/1.8

According to DXO lens test, The Canon 85/1.8 has about 0.1Ev more vignette @ f/5.6 and has in the range of 0.2-0.3Ev less transmission than the either of the Nikon 85/1.8 variants.

So the 1DX-II has roughly 0.3Ev less light at the sampling point given the relative position of the sampling point in the field of view.

Given that the Canon 1DX-II 18%patch looks extremely highly similar to the D5 18%patch even with 0.3Ev less light, is it not a fair assessment that the Canon 1Dx-II is slightly better. This happens to line up with the SNR18% graphs produced by DXO.