DxOMark: The Sigma 50mm f/1.4 Art Series Lens ‘Comes Seriously Close’ to the Otus
We have our own Sigma 50mm f/1.4 Art lens on the way for full review, but until then it's interesting to see what some of the big names in gear review are saying about this optical beast and how it compares to the Otus it was meant to compete with.