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

Olympus OM Zuiko 20 mm f/ 3.5 Macro used:

NameFull namePlaceScoresRank
1mirkomirko de filippo gattoneroudine716.299lvl.3 (Lens-Competent)