(From Sigma lens literature) SIGMA 60mm F2.8 DN A | Art. This high-performance mid-range telephoto lens has an angle of view equivalent to 120mm on the Micro Four Thirds system and 90mm on the E-mount system (35mm equivalent focal length). Featuring the natural perspective and shallow depth of field,as well as beautiful bokeh effects, this lens allows the photographer to capture a single part of a subject. It brilliantly realizes the photographer’s intentions.