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

Isco-Gottingen Tele-Westanar 180 mm f/ 4 used:

NameFull namePlaceScoresRank
1Stf 125.7lvl.2 (Lens-Adept)