With the capability to focus quickly and zoom from super-wide-angle to wide-angle, this lens captures interior sceneswith greater flexibility and handles fast action in close environments. Its DT design is ideally suited for the APS-size CCD imager of the Sony® a (alpha) DSLR-A100 camera -- and its 35mm-equivalent zoom range of 16.5mm to 27mm givesyou wide latitude in framing and composition.