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

SMC Pentax-FA 50 mm f/ 1.7 used:

NameFull namePlaceScoresRank
1Sean TengSean Teng SeanTaipei571.951lvl.3 (Lens-Competent)
2BernardBernard MoizanTours94.7998lvl.1 (Lens-Learner)
3Mandys_EdgeEdgar EdgarNeuhofen83.9lvl.1 (Lens-Learner)