Super wide angle zoom lens series nikon af s nikon dx lens mount nikon f lens speed 4 focal length 12 24 mm zoom factor 2 times suitable for sensor type aps c construction zoom lens area of use landscape photography action photography close up photography focus internal focus auto focus manual focus af motor ultrasonic motor usm reduced frame size closest focusing distance 30 cm focal length equivalent to 35mm camera 18 36 mm lens types ed asp