DxOmark does it again

[AlanF]

In “Best lenses for the Canon EOS 5DS R: Optics for travel, wildlife & portrait photography“, DxOmark recommends the 70-300mm L f/4-5.6L and omits the 100-400mm II

http://www.dxomark.com/Reviews/Best-lenses-for-the-Canon-EOS-5DS-R-Optics-for-travel-wildlife-portrait-photography

Apart from apparently realising the huge advantage of 400mm vs 300mm for wild life, all else being equal, they can’t even read their own scores.

On 5DS R
100-400mm II: score 26; sharpness 24 P-Mpix.
70-300mm L: score 25; sharpness 17 P-Mpix.

http://www.dxomark.com/Lenses/Compare/Side-by-side/Canon-EF-100-400mm-F45-56L-IS-II-USM-on-Canon-EOS-5DS-R-versus-EF70-300mm-f-4-5.6L-IS-USM-on-Canon-EOS-5DS-R__1469_1009_368_1009

 

[sunnyVan]

There's not day and night difference between these two lenses in terms of IQ. There's a big difference in terms of reach if an extender is used.

 

[NorbR]

They split the zoom into two categories, "professional" and "enthusiast".

The 100-400mm L II is in the "professional" category, where it is unsurprisingly (given how DxO rates lenses) beaten by a bunch of 2.8 lenses.
The 70-300mm L is in the "enthusiast" category, where all the lenses are slow, so the L lens takes the cake.

Completely arbitrary distinction of course, but who's surprised ...

 

[Loswr]

DxOMG

:

 

[Orangutan]

DxOMG

:

Neuro, with your academic credentials, you should offer to help DxO write up their experimental results for publication in The Journal of Irreproducible Results.

 

[Click]

DxOMG

:

;D

 

[TeT]

Looking at the list: DxOMG didn't miss on the results by much ( I am sure the logic of how they got there is skewed though)

Best lens for portraits and fashion: Carl Zeiss Apo Sonnar T* 2/135 ZE
Best prime for sport and wildlife: Canon EF 400mm f/2.8L IS II USM
Best “professional” telephoto zoom lens: Tamron SP 70-200mm f/2.8 Di VC USD
Best enthusiast telephoto zoom lens: Canon EF 70-300mm f/4-5.6L IS USM
Best super-zoom: Tamron SP 150-600mm f/5-6.3 Di VC USD

I would say for telephoto zoom the 70-200 L II, which still leaves the 100 400 L II outside looking in...

 

[AlanF]

They split the zoom into two categories, "professional" and "enthusiast".

The 100-400mm L II is in the "professional" category, where it is unsurprisingly (given how DxO rates lenses) beaten by a bunch of 2.8 lenses.
The 70-300mm L is in the "enthusiast" category, where all the lenses are slow, so the L lens takes the cake.

Completely arbitrary distinction of course, but who's surprised ...

In the list of lenses tested vs the 70-300mm L, they have the 100-400mm I but not the Mk II, so why is the Mk I enthusiast and the Mk II professional?

For the best super-zoom, they have the Tamron 150-600mm.
http://www.dxomark.com/Reviews/Best-lenses-for-the-Canon-EOS-5DS-R-Optics-for-travel-wildlife-portrait-photography/Best-super-zoom-Tamron-SP-150-600mm-f-5-6.3-Di-VC-USD

But, in the list of lens tested vs the Tammy they don't have the two Sigma 150-600mms, and the second on the list is the Canon 28-300mm! They haven't tested the Sigmas on any camera, despite their popularity and wide use. If a site is going to be so self-importantly expert as to post lists of best lenses, then they have the obligation of testing the relevant lenses.

 

[martti]

DxO are French.
What else do you need to know?