Sigma 12-24mm f/4 Art HSM DG

Representative of the Art-line of lenses of the Japanese brand Sigma, which is notable for its high optical properties. The model shoots in wide-angle positions at focal lengths from 12 to 24 mm. At the same time, the maximum aperture of the lens remains constant throughout the entire zoom range and is f / 4. Shirik produces images devoid of geometric distortions, chromatic aberrations, glare and halos, for which a large aspherical lens with a diameter of 80 mm was introduced into the optical scheme of the Sigma 12-24mm F4 DG HSM A.

In general, the optical formula of the lens consists of 16 elements in 11 groups. In addition, the model is equipped with a fast and accurate ultrasonic-type autofocus drive system, and it also has a 9-blade diaphragm. At the telephoto zoom position, the ultra-wide lens is focused from a distance of 24 cm. The model is available in versions for Canon, Nikon and Sigma SLR cameras (regardless of the size of the image sensor). It weighs down the "carcass" of the camera by about 1.1 kg.