Weekes after DXO reported the 5DS R lens testing, the lens test results are finally now in 'gen pop' with the rest of their lens testing in their tables and rankings:
http://www.dxomark.com/lenses#hideAdvancedOptions=false&viewMode=list&yDataType=rankDxo
Joyous DXO magic of note:
http://www.dxomark.com/lenses#hideAdvancedOptions=false&viewMode=list&yDataType=rankDxo
Joyous DXO magic of note:
- The sharpest 9 lens + body combos in their database are on the 5DS R, yet only 4 of those cracked the DXO top 10 in their absurd lens ranking system.
- In the following instances of a 'near identical' lens from Zeiss / Sigma being offered on both the EF or Nikon mount, we have the following wonderful findings:
Zeiss Otus 55mm
On Nikon (D800E): Sharpness = 33 P-MPix, Overall Score = 50
On Canon (5DS R): Sharpness = 37 P-MPix, Overall Score = 46
Zeiss Otus 85mm
On Nikon (D800E): Sharpness = 35 P-MPix, Overall Score = 49
On Canon (5DS R): Sharpness = 41 P-MPix, Overall Score = 47
Sigma 35mm Art
On Nikon (D800E): Sharpness = 30 P-MPix, Overall Score = 43
On Canon (5DS R): Sharpness = 34 P-MPix, Overall Score = 41
So if the lenses are effectively identical, one would look at the sensor/mount as a root cause for a lower score. I'm sure someone more versant with DXO's pentagon-like level of transparency can explain how sensor-stack-y transmission differences might explain that scoring discrepancy. Or it's just DXO being DXO.
In fairness, there were some less high profile Sigma / Zeiss lenses that the Canon so comprehensively outresolved the Nikon that even DXO had to give Canon a higher score.