Tair-22C 200mm f/4.5

as it has a maximum aperture of f/4.5. It produces a pleasing bokeh or background blur due to the 8-bladed aperture diaphragm. The lens is available in various mounts, so it can be used with different camera brands. The lens is made up of 7 elements in 6 groups and has a multi-coating to reduce flare and ghosting. It is a well-built and sturdy camera glass that can withstand regular use. The lens can produce sharp and detailed images, making it suitable for portrait, wildlife, and sports photography. The manufacturing time of the lens is not mentioned, but it is known to be a vintage lens that was produced in the Soviet Union. Overall, the Tair-22C 200mm f/4.5 is a reliable and affordable photographic lens that can produce quality images with good resolution.