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

SMC Pentax-M 28 mm f/ 3.5 used:

NameFull namePlaceScoresRank
1Beutler 39.8lvl.1 (Lens-Learner)
2buslig22 Buslig393.7lvl.3 (Lens-Competent)
3Leo Koikov 539.849lvl.3 (Lens-Competent)