The Sigma 85mm f/1.4 DG DN Art is a premium portrait prime designed specifically for Sony E-mount mirrorless cameras. Engineered from the ground up for the mirrorless era, this compact lens combines exceptional optical performance with a lightweight and weather-sealed build. Featuring a 15-element optical design with five SLD (Special Low Dispersion) elements and one aspherical element, it delivers outstanding image clarity and control of chromatic aberrations even at maximum aperture. The fast f/1.4 aperture enables beautiful subject isolation and superior low-light performance, whilst the stepping motor autofocus system provides smooth, responsive focus tracking compatible with Sony's eye-detection and face-detection systems. With its physical aperture ring featuring both click and de-click modes, customisable AFL button, and dust- and splash-resistant magnesium alloy construction, this is a versatile tool for both professional and advanced photographers seeking uncompromising optical quality in a portable form factor.