The Mamiya 645 150mm f/3.5 is a manual-focus short telephoto prime for the Mamiya 645 medium-format SLR system, mounting on bodies such as the M645, 1000S and Super/Pro line. On the 6x4.5 format the focal length sits in classic portrait territory, and the f/3.5 maximum aperture was the standard fast option Mamiya offered at this length.

UK saleroom data is thin for this lens, but the two recorded hammer prices both landed at £60, giving a current 2026 median and range of £60 at auction. These are wholesale-level results from UK auctions and exclude buyer's and seller's premium, so what the lens is worth at retail through a dealer is typically higher than what it sells for under the hammer. Clean, fungus-free copies with a working aperture and smooth focus tend to anchor the upper end of that price band.