Nikon Zoom-NIKKOR・C Auto 80-200 F4.5, a genuine Ai-converted lens. In the past, this was a standard telephoto zoom lens that professionals using Nikon F2 and F3 cameras were said to have owned. It's like today's "small trinity" lenses. The filter diameter is 52mm, and the closest focusing distance is 1.8m. I have used it with Nikon D5, D800E, and D7200 cameras. It can be used without any problems for manual exposure shooting and aperture-priority exposure shooting. When carefully used, it produces images that are surprisingly beautiful for an old zoom lens. As shown in the image, there is some fungus on the front element, and a lot of dust is mixed in. There are also some cleaning marks on the rear element, but they did not affect the test shots during operation.