All About Photographic Lenses.
Specifications, comparison, reviews, MTF-charts for lenses by Canon, Nikon, Sony, Pentax, Olympus, Sigma, Tamron, Carl Zeiss, etc.

Sigma DG A 24-35 mm f/ 2 HSM used:

NameFull namePlaceScoresRank
1Rainer MarjenauMarjenau RainerBad Rothenfelde539.75lvl.3 (Lens-Competent)
2PavolPavol Stražovec Žilina2106.35lvl.4 (Lens-Pro)