Image quality Rivaling That Of Our Art Line Lenses

With 16 elements in 13 groups, the optical system of this SIGMA 16mm F1.4 DC DN | Contemporary lens for Sony E-Mount features a multitude of high-tech and high-end components, including three FLD glass elements, two SLD glass elements, and two molded glass aspherical elements. This optical system minimizes optical aberrations and ensures outstanding resolution at wide-open aperture and throughout the aperture range. In particular, the two aspherical lens elements have ultra-high-precision surfaces polished to tolerances under 10 nanometers, minimizing the onion ring bokeh effect that some aspherical elements produce and ensuring clear image quality throughout the frame. In addition, the structure of the optical system gently bends light to minimize sagittal coma flare and deliver optimal optical performance from the center of the frame to the edges. The result is a smooth, round bokeh effect with ample light volume throughout the frame.

Mount With Dust- And Splash-resistant Construction

The mount features a special sealing to make the lens an excellent choice in a wide variety of conditions.