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 Tessar T 50 mm f/ 3.5 used:

NameFull namePlaceScoresRank
1Mika Uolamo 378.6lvl.3 (Lens-Competent)
2likan 632.344lvl.3 (Lens-Competent)
3Sean TengSean Teng SeanTaipei571.951lvl.3 (Lens-Competent)
4Aravier BatizAravier Batiz Santa Monica, California.175.8lvl.2 (Lens-Adept)