Ultra-wide 20 mm to mid-tele 70 mm zoom, for a range of movie and still subjects With an unprecedented ultra-wide 20 mm to mid-telephoto 70 mm zoom range, this versatile lens is an excellent choice for a wide range of movie and still subjects. Outstanding G Lens image quality with corner-to corner high resolution With two AA elements, one aspherical element, three ED glass elements, and one ED aspherical element, this state-of-the-art lens design corrects both chromatic and spherical aberration for high optical performance Peak AF performance with two XD Linear Motors for precise, fast, quiet focus drive Two XD Linear Motors achieve fast, quiet, smooth focus drive with up to 60% higher AF speed and up to two times better performance while tracking for reliable, precise tracking. Refined movie imagery with minimized focus breathing and focus/axial shift while zooming Advanced technology reduces focus breathing as well as focus and axial shift when zooming so that distracting image shifts are minimized. Compact, lightweight design for superb image quality and versatility in any situation This compact, lightweight lens combines state-of-the-art optical design with Sony's high-thrust XD Linear Motor technology. Used with a compact mirrorless camera, it can deliver superb image quality Excellent close-up performance of 9.8” (25cm) throughout the zoom range (manual focus) AA (advanced aspherical) elements help to achieve a minimum focus distance of 11.8” (30 cm - wide) to 9.8” (25 cm - telephoto) when using AF, and 9.8” (25 cm) throughout the zoom range when focusing manually. Constant F4 maximum aperture throughout zoom range for greater flexibility A constant F4 maximum aperture offers greater flexibility in choosing apertures at any focal length. The selected aperture remains constant throughout the zoom range. Circular aperture with 9-blade iris for naturally rendered bokeh The deep, soft bokeh available with full-frame image sensors