Wide angle lens series samyang vdslr lens mount minolta asony a lens speed 22 focal length 16 mm zoom factor 1 times suitable for sensor type aps c construction prime lens area of use landscape photography videography night photography indoor photography close up photography focus manual focus internal focus max magnification 12 2 closest focusing distance 20 cm lens types apo ed lens construction groupselements 1113 minimum aperture 22 m