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

Sony 500 mm  f/ 8  used:

NameFull namePlaceScoresRank
1Ferenc Boloni 343lvl.3 (Lens-Competent)