Review of Tamron AF 18-270mm f/3.5-6.3
Dpreview has review the lens of Tamron AF 18-270mm f/3.5-6.3 Di II VC LD Aspherical
(IF) MACRO.
Tamron AF 18-270mm represents an impressive feat of optical engineering, and Tamron has to be applauded for producing a superzoom that has significantly longer telephoto reach than its direct competitors without further compromising image quality.
They found some optical problem with these lens which tagged $600, but overall Tamron where it’s weak it’s not too far behind the competition.
[ Source dpreview ]

