INCLUDED - Sigma 16mm f/1.4 lens, front/rear caps, hood, 4-year warranty, ProOptic filter kit, flex shade, cleaning kit, cap tether, lens cleaner, & Corel Mac Essentials Suite. SUPERIOR IMAGING - Experience exceptional sharpness and clarity with 16 elements in 13 groups, delivering outstanding image quality across the entire frame. ULTRA-WIDE PERSPECTIVE - Capture expansive scenes with a 16mm focal length (24mm equivalent), perfect for landscapes, interiors, and creative compositions. BEAUTIFUL BOKEH - Achieve stunning background blur with a wide f/1.4 aperture and 9 rounded diaphragm blades, ideal for portraits and shallow depth of field effects.