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

Topcor Macro-Topcor 135 mm f/4 used:

NameFull namePlaceScoresRank
1Klaus BoKlaus Bo Nielsen Klaus Bo NielsenRanders C312.1lvl.2 (Lens-Adept)