SAL1650 is a high quality standard telephoto lens, ideal for wide range of everyday applications, including portraits, travel, landscapes and general-purpose shooting. Bright F2.8 maximum aperture allows creation of smooth background defocus effects (bokeh). High performance optics achieve versatile zoom range in light, easy-to-carry lens body. Internal SSM (Super Sonic wave Motor) drive achieves exceptionally fast, quiet autofocus - ideal for stills and HD movie shooting. Aspherical lens elements and ED glass elements suppress aspheric and chromatic aberration for superb resolution and contrast. Rugged weather-resistant design with interlocking seals protects against effects of dust and moisture.