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

Vivitar Series 1 200 mm f/ 3.0 used:

NameFull namePlaceScoresRank
1mr_vivitar 182.952lvl.2 (Lens-Adept)
2Jim Heal BELFAST33.05lvl.1 (Lens-Learner)
3Rikke Chemnitz 45.5lvl.1 (Lens-Learner)