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

Vivitar 28 mm f/ 2.5 (Kino, Kiron) used:

NameFull namePlaceScoresRank
1aptem59 22lvl.1 (Lens-Learner)
2edspad 58.3lvl.1 (Lens-Learner)
3ProfHankDHank Dietz HankLexington199.9lvl.2 (Lens-Adept)
4leandro teixeira 11.1lvl.1 (Lens-Learner)
5drpeters Louisville, KY202.8lvl.2 (Lens-Adept)
6Toon Perdaens 170.4lvl.2 (Lens-Adept)
7Christoph PfeilstuckerChris ChrisPanevėžys126.4lvl.2 (Lens-Adept)
8Helios40 91.9lvl.1 (Lens-Learner)
9wjf42 55.3lvl.1 (Lens-Learner)
10Karol 58.9lvl.1 (Lens-Learner)
11James HeilJames HeilAugusta, Maine270.501lvl.2 (Lens-Adept)
12jafrro 25.9lvl.1 (Lens-Learner)
13Jose DepazJose Depaz ChiefAsheboro238.3lvl.2 (Lens-Adept)
14ArmourbearerRicky T Ferns ArmourBearerMOUNT RICHON111.7lvl.2 (Lens-Adept)
15mmmio 168.651lvl.2 (Lens-Adept)
16Enrique_Vega_PinedaEnrique Vega Enrique VegaBarcelona142.2lvl.2 (Lens-Adept)
17Sjoerd MeulenSjoerd van der Meulen FotoFriesDrachten111.2lvl.2 (Lens-Adept)