180mm · f/1.5
The Nikon Tokyo Kogaku Simlar-F 180 mm f/1.5 is a rare World War II-era lens manufactured in March 1942. It weighs 4.5 kg and comes in a wooden box. No optical or handling reviews are available; its purpose (reconnaissance or scientific) is unknown. It suits collectors of vintage military optics, but practical use is undocumented.