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

Lensbaby Spark 50 mm f/ 5.6 used:

NameFull namePlaceScoresRank
1NerveNet JavierMadrid1385.95lvl.4 (Lens-Pro)