World’s Widest f/2.8 Lens with close-to-zero distortion.

Featuring the widest angle of view (122°) ever offered from a f/2.8 lens, this is an ideal lens for a wide variety of shooting situations. From landscape, architecture, interior, travel to the most important, astro photography.  The lens is the lightest and most compact lens in its class. Ideal for everyday shooting. It also features close-to-zero optical distortion, allowing photographers to take landscape/architecture shots with straight lines retained.