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

Vivitar 90-230 mm f/ 4.5 Auto Tele T4-TX mount (Tokina) used:

NameFull namePlaceScoresRank
1Bart Z 52.1lvl.1 (Lens-Learner)