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

Opteka 6.5 mm f/ 3.5 Fish-Eye CS used:

NameFull namePlaceScoresRank
1VintMauro 176.95lvl.2 (Lens-Adept)
2Donald Gallagher 43.1lvl.1 (Lens-Learner)