The Asahi Pentax Takumar 135mm f/2.5 lens is a high-quality telephoto prime lens designed for manual focus cameras with a Pentax K mount. Made of durable metal in a sleek black colour, this lens from the 1990s has a maximum aperture of f/2.5 and a focal length of 135mm. Compatible with Pentax cameras, this lens features a 58mm filter size and is manufactured in Japan. The Asahi Pentax brand is known for producing reliable and versatile optics, making this lens a great choice for photographers looking to capture detailed images with precision and clarity.