Lightweight and versatile normal-length telephoto lens.
This 50 mm mid-range telephoto lens offers a focal length that is perfect for portraiture and a range of other subjects, a bright F1.8 maximum aperture, Optical SteadyShot (OSS) image stabilization and impressive image quality, all in a surprisingly compact and lightweight package. Add responsive, quiet autofocus and aperture operation, and you have a lens that is ideally suited to shooting movies as well as stills.
Circular Aperture
When changing your aperture to defocus the background, the light sources appear blurred. This "bokeh" effect of the blurred background can be enhanced with circular aperture blades used in this lens. Conventional aperture blades have flat sides creating unappealing polygonal shaped defocussed points of light. α lenses overcome this problem through a unique design that keeps the aperture almost perfectly circular from its wide-open setting to when it is closed by two stops. Smoother, more natural defocusing can be obtained as a result.