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

Pentax FA 28-105 mm f/ 4-5.6 Power zoom used:

NameFull namePlaceScoresRank
1Sergey Gorbachevsky 630.001lvl.3 (Lens-Competent)
2Sean TengSean Teng SeanTaipei571.951lvl.3 (Lens-Competent)