The Mamiya 7 50mm f/4.5 is a wide-angle prime lens for the Mamiya 7 and 7II 6x7 medium-format rangefinder system, where it renders a field of view roughly equivalent to a 24mm lens in 35mm terms. Designed for landscape, architectural and interior work, it pairs the N-series leaf-shutter mount with the compact, hand-holdable body that made the Mamiya 7 popular with travelling photographers from the mid-1990s onwards.

At UK auction, hammer prices for this lens have ranged from £325 in 2023 to £554 in early 2025, giving a small-sample median close to £440. Those figures are saleroom results — wholesale levels before buyer's premium — so dealer asking prices in 2026 typically sit well above what a clean copy sells for at auction today, and condition of the shutter, coatings and finder accessory (if included) drives most of the spread in value.