Sigma 20mm 1:1.4 DG Wide angle lens

This lens comes from Sigma's renowned Art series, designed for photographers who demand the very highest image quality. With an astonishingly large maximum aperture of f/1.4, it is the ultimate lens for astrophotography (starry skies), landscapes, architecture, and low-light reportage. You get an incredibly wide field of view paired with gorgeous, smooth background blur (bokeh) that you don't often see with a wide-angle lens.