Nikon Ai Nikkor 20mm F4 Ultra Wide Angle Prime Lens Excellent from Japan. It’s overall in excellent condition. Please find the pictures for details. It comes with front and rear lens caps. Appearance: Excellent condition, with light signs of use only. Functions: Works properly, aperture is snappy, blades are free from oil. Optics: No scratches, no haze, no fungus, tiny dust inside (no effect on shot images). Nikon Corporation (??? “Kabushiki-gaisha Nikon”), also known just as Nikon, is a Japanese multinational corporation headquartered in Tokyo, Japan, specializing in optics and imaging products. The companies held by Nikon form the Nikon Group. Among its products are Nikkor imaging lenses (for F-mount cameras, large format photography, photographic enlargers, and other applications), the Nikon F-series of 35 mm film SLR cameras, the Nikon D-series of digital SLR cameras, the Coolpix series of compact digital cameras, and the Nikonos series of underwater film cameras. Nikon’s main competitors in camera and lens manufacturing include Canon, Sony, Fujifilm, Lumix, Pentax, and Olympus. Founded on July 25, 1917 as Nippon Kogaku Kogyo Kabushikigaisha Japan Optical Industries Co. , the company was renamed Nikon Corporation, after its cameras, in 1988. Nikon is one of the subsidiaries of Mitsubishi. International Buyers – Please Note. If you have any questions, feel free to ask us before purchasing. Thank you for looking.