INCLUDED - Sigma 23mm f/1.4 Lens, Hood, Front/Rear Caps, 52mm Filter Kit, Lens Pouch, Lens Pen, Cleaning Kit, Cap Tether & Sigma 4 Year Limited Warranty. SUPERIOR OPTICAL PERFORMANCE - Achieve stunning clarity with 13 elements in 10 groups, including 3 SLD and 2 aspherical elements for exceptional image quality. BEAUTIFUL BOKEH - Create dreamy backgrounds with a wide f/1.4 aperture and 9 rounded diaphragm blades, perfect for portraits and shallow depth of field photography. FAST & ACCURATE AUTOFOCUS - Capture fleeting moments with a responsive autofocus system, ensuring sharp and clear images even in dynamic shooting situations.