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

Canon FDn 200 mm f/ 4 Macro used:

NameFull namePlaceScoresRank
1Sean TengSean Teng SeanTaipei571.951lvl.3 (Lens-Competent)