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

SMC Pentax-A 645 150 mm f/ 3.5 used:

NameFull namePlaceScoresRank
1Jeb 22.1lvl.1 (Lens-Learner)