Sigma 19mm f28 dn micro four thirds silver
Wide angle lens series sigma dn sigma art lens mount micro four thirds micro 43 lens speed 28 focal length 19 mm suitable for sensor type four thirds 43 construction prime lens area of use indoor photography night photography landscape photography close up photography focus internal focus auto focus manual focus af motor linear motor voice coil motor circular aperture max magnification 17 4 closest focusing distance 20 cm focal length equival