Standard zoom lens series sony sal sony dt lens mount minolta asony a lens speed 35 focal length 18 55 mm zoom factor 31 times suitable for sensor type aps c construction zoom lens area of use landscape photography close up photography focus manual focus auto focus af motor no internal af motor circular aperture reduced frame size closest focusing distance 25 cm focal length equivalent to 35mm camera 27 82 5 mm lens types ed aspherical lens