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

Sigma MF 16 mm f/ 2.8 Fisheye Filtermatic used:

NameFull namePlaceScoresRank
1Hucky HuckyFlensburg240.9lvl.2 (Lens-Adept)
2Rene Reff 42.0999lvl.1 (Lens-Learner)