This Sigma 35mm f/1.2 DG DN Art Lens features Sigma’s first prime lens design with an f/1.2 maximum aperture. Three low dispersion glass elements and three aspherical elements, including a double-sided element, effectively control spherical aberrations and distortion for increased sharpness and accurate rendering. While the aperture ring’s de-click switch can prevent unwanted noise from being recorded while capturing video with sound, the built-in Autofocus-Lock (AFL) button can be assigned additional functions to widen the range of operations available on the lens. Created for full-frame Sony E-mount mirrorless cameras, this lens features Sigma’s first f/1.2 maximum aperture, prime lens design to deliver excellent image quality while optimizing size, as well as weight. It is also suitable for APS-C models where it provides a 53mm equivalent focal length. Three Special Low Dispersion (SLD) elements markedly reduce chromatic aberrations and color fringing throughout the zoom range for improved clarity and color accuracy. Built-in Autofocus-Lock (AFL) button which can be assigned additional functions widens the range of operations available on the lens.