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

Carl Zeiss Jena 135 mm f/ 2.8 used:

NameFull namePlaceScoresRank
1Clouseau Warsaw20.5lvl.1 (Lens-Learner)
2Emin 10.3lvl.1 (Lens-Learner)
3dgrmkrp 211.501lvl.2 (Lens-Adept)
4soundteeth 41.9lvl.1 (Lens-Learner)