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

Samsung NX 20-50 mm f/ 3.5-5.6 ED II used:

NameFull namePlaceScoresRank
1Ivanzegt 83.8lvl.1 (Lens-Learner)
2Gustavo RodriguesGustavo Rodrigues Gustavo11.7lvl.1 (Lens-Learner)