Telephoto lens series pentax da lens mount pentax k lens speed 24 focal length 70 mm construction prime lens area of use night photography focus manual focus closest focusing distance 70 cm focal length equivalent to 35mm camera 107 mm number of aperture blades 9 minimum aperture 22 max aperture 24 filter thread 49 mm length 63 mm lens diameter 26 weight 131 g included in delivery lens cap lens pouch lens hood colour silver