Sony 28-70mm F3.5-5.6 FE OSS Interchangeable Standard Zoom Lens Outstanding performance in an affordable full-frame zoom that is lightweight and compact Maximum magnification ratio (x): 0.19x.Three a spherical elements and one ED glass element contribute to beautiful rendering with minimum aberration Built-in Optical Steady Shot image stabilization ensures clearer, sharper handheld shots;Aperture Blades : 7