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

Sigma MF 28-70 mm f/ 3.5-4.5 MC Zoom-Epsilon used:

NameFull namePlaceScoresRank
1Linty 16.5lvl.1 (Lens-Learner)
2RichardIIIRichard Lee Fulgham Richard Lee FulghamBel Air259.4lvl.2 (Lens-Adept)