SIGMA 28-45mm F1.8 DG DN | Art Lens Announced

 The SIGMA 28-45mm F1.8 DG DN | Art is the world's first full-frame zoom lens with a constant maximum aperture of F1.8, delivering sharpness and clarity comparable to that of a prime lens.Already the pioneer of unique, large-aperture zoom lenses including the SIGMA 18-35mm F1.8 DC HSM | Art and the SIGMA 24-35mm F2 DG HSM | Art, SIGMA introduces another fast, portable and versatile tool to its Art lineup. In addition to its unprecedented brightness, the SIGMA 28-45mm F1.8 DG DN | Art d