A compact, large-aperture APS-C standard zoom for users who want a small, lightweight system that provides advanced control as well as outstanding image quality. This 16-55mm (24-82. 5 mm full-frame equiv. ) standard zoom lens weighs in at only 494g. The advanced G lens design suppress aberration, reflections, flare, and ghosting, while the 9-blade circular aperture contributes to gorgeous bokeh. The SEL1655G incorporates the same XD (Extreme Dynamic) Linear Motor technology found in the Full-frame G Master series to obtain fast, precise, quiet autofocus and tracking.