Smaller and lighter, it?s the only 5X zoom lens designed specifically for the APS-size CCD imager used in the Sony ? (alpha) cameras.
Advisory when using DT lenses with full-frame (35mm equivalent) DSLR cameras. : Sony (alpha) lenses with the Digital Technology (DT) designation are ideal for use on APS-C size DSLR cameras and are not recommended for use with full frame DSLR camera bodies (such as the DSLR-A900). Although DT lenses can be used with full frame cameras, they can only realize a maximum of 11MP image size (when using the DSLR-A900), and are not guaranteed to provide accurate Auto Exposure performance.