8 out of 10 points and recommendedSize, Focusing Range, HandlingPoor Geometry and Definition with Shorter Focal Lenghts
Nice and Compact Lens. Very useable as All-round Travel Zoom. Focuses Nicely Surprisingly Close. Decent Build Quality. Somewhat Disappointing performance in the Shorter End of the Focal Lenght Scale.reviewed May 12th, 2006
Seems to Be Optically Perfectly Identical to Sigma 18-200 f/3,5-6,3 Zoom. So One Has To Come in to a Conclusion That the Lens id Actually Made By Sigma.