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

Tamron 28-200 mm f/ 3.8-5.6 LD Aspherical IF Adaptall-2 model 171A used:

NameFull namePlaceScoresRank
1ThorstenP N157.35lvl.1 (Lens-Learner)
2CanonA1GN Munich117lvl.2 (Lens-Adept)