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

SMC Pentax DA 21mm f/ 3.2 AL Limited used:

NameFull namePlaceScoresRank
1Seti 32.3999lvl.1 (Lens-Learner)
2mangocan Cannes5.7lvl.1 (Lens-Learner)
3Mandys_EdgeEdgar EdgarNeuhofen83.9lvl.1 (Lens-Learner)
4NikolayAP 7.3lvl.1 (Lens-Learner)