Features: 50mm focal length, F1.4 large aperture portrait manual focus camera lens, suitable for Sony E-mount mirrorless cameras (5R, 5T, A3000, A3500, A5000, A5100, A6000, A6500, A7, A7M2 A7M3, A7S, A7R, etc). It is optimized for working on full aperture with the great sharpness and contrast as on smaller apertures by Sonnar formula and high refractive optical glasses. At the same time, it features fast aperture and lowest chromatic aberration, producing pleasing portrait style quality for any general purpose application. The twelve diaphragm blades are crucial to favorable rendition of highlights in the fore and background. It provides high quality of the transition as well as nice bokeh for the lens, keeping the background intentionally blurred to keep the attention of the observer on the main subject.