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

Sigma AF 28-300 mm f/ 3.5-6.3 Macro used:

NameFull namePlaceScoresRank
1fotoregisser VladimirRostov-on-Don17lvl.1 (Lens-Learner)