LSXPhotog said:
Yes.
They are waiting to find a way to further cook their data to cripple the Canon glass scores when used on a 5DS.
Figure this...
Several L lenses are the equal to or slightly better to Nikon's top glass by DXO's own measures. However, this is tested on an AA filtered 22.3mp 5D3 vs. a non-AA filtered 36mp D810. The Canon glass has a huge disadvantage, yet is right up there.
It stands to reason that once tested on a 5DS, the scores will clearly beat Nikon. The fact that images coming from a 5D3 are of such high quality indicates the sensor is being pushed to its max by the superior L glass.
Now, DXO, Nikonians and other assorted sycophantic apologists will say that these tests are done in a manner by which to be independent the sensor's resolution. This of course is BS, because as you select higher MP cameras on DXO, the score increases.
DXO continues to weigh in dynamic range even on lens tests!!! Not only that, but they make it a big part of the scoring.
This fact, piled upon a mountain of other facts can lead a person to no other conclusion than DXO is biased against Canon, and heavily favors Sony/Nikon.
Now, in fairness to Nikon. Their top pro glass, made in Japan, is very good.
No, they don't have the wide selection of choices that Canon does.
But they are so close to Canon in the common lenses, that it doesn't matter. Their 70-200 (focus breathing issue aside) on a D810 or D750 is so sharp and offers so much detail, it is more than just about anyone needs. In other words, it's not the gear holding you back. Stunning images are created with their system.
However, Canon does edge them out in optical quality, autofocus speed etc.
The only way to really compare them is to do so without cameras. That's right, measure the MTF!!! Each company publishes their own scores. But I think was lensrentals or some site like that that got their own expensive testing equipment and published MTF scores. Look it up.
The results on average was that Canon is slightly better in optical quality. But it is very close on most of the pro lenses. Considering the prices Nikon charges, Canon is a tiny bit better value in that regard also.
But who uses just a lens? It's a lens + camera system that produces an image. For that, the best way to test and evaluate is NOT with some BS that DXO cooks up. But rather, by evaluating dozens of RAW image tests done in comparison by VARIOUS different testers.
Only then will you see for yourself a trend one way or the other. Or maybe not at all, indicating they are too close that small variables in testing are making the difference.
All that said, the 5DS with 50MP will make the most of Canon's L lenses and this is already evident in the test images provided across the web.
DXO has to protect Sony/Nikon, so they use literally the only thing Nikon/Sony has an advantage on, and that is low-ISO DR and throw that into the mix for scoring lenses. (rolls eyes)
What if the only advantage Nikon had was shutter speed? That is akin to them factoring shutter speed into lens image quality scores to prop them up against Canon.
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