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

Sigma DG C 45 mm f/ 2.8 DN used:

NameFull namePlaceScoresRank
1Tolosano Toulouse190.801lvl.2 (Lens-Adept)