The Asahi Pentax Super-Takumar 135mm f/2.5 is a fast medium telephoto prime in the M42 screw mount, produced during the Takumar era for Pentax SLRs. It was aimed at portrait and short-telephoto work, offering a brighter f/2.5 maximum aperture than the more common 135mm f/3.5 sibling.

UK auction evidence is thin: the only logged sale, in April 2025, fetched £44 at hammer — a wholesale saleroom result that excludes commission and is well below typical retail asking prices. On that single data point the lens is currently worth around £44 in the auction market in 2026, though clean, haze-free copies in original condition can sell for more when they appear. With so few results, the price a given example sells for varies widely with cosmetic and optical condition.