I do not believe

[ag08025]

This a comment for this page on the website

because your tests are so far from reality?
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=823&Camera=453&Sample=0&FLI=0&API=0&LensComp=805&CameraComp=453&SampleComp=0&FLIComp=0&APIComp=2

[ageha]

<div id="linkdxomark">This a comment for <a href="http://www.dxomark.com/index.php/Lenses/Camera-Lens-Database/Canon/Canon-EF-24-70mm-F4L-IS-USM">this page on the website</a></div>because your tests are so far from reality?
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=823&Camera=453&Sample=0&FLI=0&API=0&LensComp=805&CameraComp=453&SampleComp=0&FLIComp=0&APIComp=2

Maybe sample variation?

[RIVERAKTRE]

Interesting point but you have to remember you're not really comparing apples to apples here. The link you provided compares a Canon f/4 VS Sigma f/2.8 which isn't a true apple's to apple's comparison. More like a peach and orange.

DXO Lab tests thousands of lenses under Strict controlled environments, I highly doubt they're fluffing up the test results. PLUS "IF" they were...what are they gaining from doing so?

Something to think about.