Two sld glass elements in the front lens group one sld glass element in the rear lens group 12 maximum magnification multi layer lens coating minimum focusing distance of 95cm telephoto zoom lenses with tele macro function and optimised for digital slr cameras the performance telephoto zoom lens is capable of shooting with a maximum magnification of 12 at the focal length of 300 mm its the ideal lens for portraits sports photography nature photography and other types of photography that frequent