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

I-61 52 mm f/ 2.8 used:

NameFull namePlaceScoresRank
1VeerdAndreyev VladimirUst-Kamenogorsk4826.81lvl.5 (Lens-Expert)
2chris_zeel 152.4lvl.2 (Lens-Adept)
3Per Borjars 60lvl.1 (Lens-Learner)
4Baja 63.55lvl.1 (Lens-Learner)
5Mika Uolamo 378.6lvl.3 (Lens-Competent)
6Christoph PfeilstuckerChris ChrisPanevėžys126.4lvl.2 (Lens-Adept)
7Pentacon SergiSergio Port de Pollença174lvl.2 (Lens-Adept)
8Sony Kusumo 140.4lvl.2 (Lens-Adept)
9quillo_centeno 87.2998lvl.1 (Lens-Learner)
10Sjoerd MeulenSjoerd van der Meulen FotoFriesDrachten111.2lvl.2 (Lens-Adept)
11dgrmkrp 211.501lvl.2 (Lens-Adept)