Nikkor 180mm f/2.8 AI is superior, telephoto prime lens with high image quality. The 180mm has a relative fast lens speed and offers lens apertures that stopped down to f/32 for maximum depth-of-field control. It's 1.8m close focusing capability allows photographing tightly-cropped images from comfortable working distance. The 180mm f/2.8 AI feature five elements in four groups optical construction with seven diaphragm blades, 13° picture angle and 72mm filter thread.
