The Sigma 85mm f1.4 DG DN (ART) is a premium portrait lens engineered exclusively for mirrorless cameras, combining fast autofocus performance with compact, lightweight design. Weighing just 630g with a body length of 94.1mm, this L-Mount lens delivers professional-grade optical quality through its advanced optical design featuring five Special Low Dispersion elements and one aspherical element. The f1.4 maximum aperture provides exceptional low-light performance and beautiful bokeh separation, whilst the weather-sealed construction ensures durability in challenging conditions. Featuring a stepping motor autofocus system optimised for both phase-detection and contrast AF, rounded 11-blade diaphragm for smooth aperture transitions, and customisable AFL button for enhanced workflow control, this lens is an excellent choice for portrait photographers and videographers seeking premium image quality in a portable package.