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

Canon EF 20-35 mm f/ 2.8 L used:

NameFull namePlaceScoresRank
1svkoros SergeyVoronezh23.45lvl.1 (Lens-Learner)
2margo 56lvl.1 (Lens-Learner)
3Felipe SaldanhaFelipe Saldanha FelipeBelo Horizonte236.75lvl.2 (Lens-Adept)