The Sigma 85mm F1.4 DG DN Art is a high-performance prime lens designed for full-frame mirrorless cameras, offering exceptional image quality and a fast aperture ideal for portrait photography.\r\rKey Features:\r\rFocal Length: 85mm\rMaximum Aperture: f/1.4\rLens Construction: 15 elements in 11 groups, including 5 SLD (Special Low Dispersion) elements and 1 aspherical element, minimizing aberrations and ensuring sharpness across the frame.\rAperture Blades: 11 rounded blades for smooth, pleasing bokeh.\rMinimum Focusing Distance: 85 cm\rMaximum Magnification Ratio: 1:8.4\rFilter Size: φ77 mm\rDimensions: φ82.8 mm x 94.1 mm\rWeight: 630 g\rMounts Available: Sony E-mount and L-mount\rAdditional Features:\r\rWeather-Sealed Construction: Dust and splash-resistant design for reliable use in various conditions.\rCustomizable AFL Button: Assignable function button for enhanced control.\rAperture Ring with De-click Option: Allows smooth, silent aperture adjustments, beneficial for video recording.