The Sigma 24mm f/3.5 DG DN is a compact ultra-wide prime lens designed for full-frame L-Mount mirrorless cameras. Part of Sigma's acclaimed I Series, this lens combines exceptional portability with impressive optical performance, making it ideal for landscape, street, and travel photography. The all-metal barrel construction with professional-grade mechanical aperture ring delivers cinema-inspired build quality and tactile controls. Its f/3.5 aperture and 55mm filter thread maintain a supremely compact profile without compromising versatility. With a 1:2 maximum magnification ratio and 10cm minimum focus distance, the lens enables creative close-up work alongside wide-angle perspectives. Premium optical elements including one SLD glass component and three aspherical elements work together with a Super Multi-Layer Coating to deliver sharp, distortion-controlled images with excellent colour fidelity. A quick and quiet stepping motor autofocus system suits both still and video applications, whilst manual focus is smooth and precise.