Nikon AI-S is a fast telephoto lens for producing smooth bokeh effect and good contrast as well as sharp pictures. This 135 mm f/2.0 lens has a built-in hood and nine straight diaphragm blades. This lens is ideal for shooting in studio settings and outdoors with low contrast. Heavy construction of the Nikon camera lens makes it durable and long-lasting. Nikon AI-S has an optical construction composed of six elements in four groups. This Nikon camera lens weighs 860 grams and feels solid to the touch. It measures 80.5 x 93.5 mm (31.69 x 36.81-inches). This 135 mm f/2.0 lens focuses as close as 1.3 meters or 4.5 ft. Filter size is 72 mm. Super fast speed allows for shooting in low light situations. Extra stop lens speed gain gives photographers a lot of depth of field control. Nikon AI-S is suitable for shooting stage performers, wildlife, candid people shots, and is used by photo journalists around the world.