[Scythels]

Me too. And I see my Sigma Art lenses not as worse than the Nikkors. Nor do I see a lot of sample variation, when lensrentals is testing a batch of lenses.


Maybe you're talking about Sigma lenses in general, including all series before they shifted into this Art / Contemporary / Sports categories.

 

 

Sigma has considerably more variance than canon, at least.  35L varied 7.32% across tested copies, and 35A varied 12.86%... over 50% more.  However, the average 35A is indeed better than the average 35L... though less than people on the internet would want you to think.

 

Sample data:

 

http://imgur.com/a/FbH74