From Sigma's Art Lens Series comes the 20mm F1.4 DG HSM, a state of the art wide-angle prime lens crafted for ultra-high-megapixel DSLRs, but will also work with APS-C sensors as well.

With a focal length of 20mm and F1.4 aperture, this lens delivers outstanding large-aperture brightness and bokeh, resulting in unprecedented visual experiences.

This allows the photographer to leverage the perspective provided by the wide-angle and the shallow depth of field provided by the large aperture; suitable for such ultra-wide-angle subjects as landscapes and starry skies, but also for snapshots in low light, indoor photography, portraits with a natural bokeh effect, and much more.The 20mm measures 5.1” long and 3.6” wide and it tips the scale at 33.5 oz., while offering f-stops ranging from F1.4 to f/16 and utilizing 9 rounded diaphragm blades.