INCLUDED - Sigma 24mm f/2 DG DN Contemporary Lens, Magnetic Metal Lens Cap, Hood, Front/Rear Caps, 4-Year Warranty, ProOptic Filter Kit, Mac Software, Cleaning Kit, and Lens Cap Tether. SUPERIOR OPTICAL PERFORMANCE - Achieve exceptional image quality with 13 elements in 11 groups, including FLD, SLD, and aspherical lenses, minimizing aberrations for clear, detailed images. BEAUTIFUL BOKEH - The wide f/2 aperture and 9-blade rounded diaphragm create stunning background blur, perfect for portraits and isolating subjects with a pleasing aesthetic. FAST AND ACCURATE AUTOFOCUS - Equipped with a stepping motor (STM) for quick, quiet, and precise autofocus, ideal for both stills and video, ensuring sharp focus on your subject.