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

Sigma 18-200 mm f/ 3.5-6.3 DC OS (HSM) used:

NameFull namePlaceScoresRank
1arleg 9lvl.1 (Lens-Learner)
2Paul Richardson 22.75lvl.1 (Lens-Learner)
3Lasse Svenson 56.5lvl.1 (Lens-Learner)
4Alhutch 11.9lvl.1 (Lens-Learner)