The large aperture makes it easier to shoot in low light and, in combination with an 11-blade aperture design, can produce gorgeous bokeh. Other benefits include fast, precise focus and versatile control for stills and movies.
Two aspherical elements, including one AA (advanced aspherical) element, plus ED glass elements maintain high resolution and contrast at all apertures, from corner to corner.
Legendary ZEISS quality manufactured and calibrated specifically for Sony imaging products. The T* coating contributes to exquisite rendering and contrast.