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

Pentacon 100 mm f/ 2.8 auto used:

NameFull namePlaceScoresRank
1Juanfra 45.9lvl.1 (Lens-Learner)
2JuriUsed 49.2lvl.1 (Lens-Learner)