INCLUDED - Sigma 14-24mm f/2.8 DG DN ART Lens, Hood, Case, Caps, 4-Year Warranty, Lens Wrap, Rain Sleeve, Cleaning Kit, Flex Shade, Tether, Cleaner, Mac Software. SUPERIOR OPTICS - Experience exceptional image clarity with 18 elements in 13 groups, minimizing distortion and aberrations for stunningly detailed photos. ULTRA-WIDE ZOOM - Capture expansive landscapes and architectural marvels with a versatile 14-24mm focal length, perfect for creative compositions. CONSTANT F/2.8 APERTURE - Achieve beautiful bokeh and excel in low-light conditions with a bright, constant f/2.8 aperture throughout the zoom range.