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

Vega-9 50 mm f/ 2.1 used:

NameFull namePlaceScoresRank
1SharkDD sovietphoto_com9518.66lvl.6 (Lens-Master)
2mrTTT 15.3lvl.1 (Lens-Learner)