Sigma 14-24mm F2.8 DG HSM Art Lens for Nikon Darkroom Chemistry and quiet operation in both

and quiet operation in both movie and still-image capture

the magnetic back facilitates instant attachment to metal surfaces

A circular polarizer only differs from a linear polarizer in that it contains a quarter wave plane in addition to the linear polarizing filter

The cap is specially designed for the SIGMA 15mm F1

and suppress flare and the fluctuation of aberration at the time of focusing

Sigma 14-24mm F2.8 DG HSM Art Lens for Nikon Darkroom Chemistry and quiet operation in bothOutstanding Art Lens Performance Designed for 50 megapixel plus cameras, the 14 24mm F2. 8 DG HSM Art achieves the legendary Art lens sharpness with three FLD glass elements, three SLD glass elements, and three aspherical lens elements, including one 80mm high precision molded glass aspherical element. With near zero distortion (less than 1%) and minimal transverse chromatic aberration, flare and ghosting, the new Sigma 14 24mm offers constant F2. 8