{"overview":"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.","market_narrative":"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.","buying_guide":"Inspect the front and rear elements under a torch for fungus, haze and cleaning marks, and check the coating for scratches that affect contrast. Work the aperture ring and look at the blades for oil migration, then run the focus through its full travel to confirm it is smooth rather than stiff or sticky, and check for any sign of element separation around the cemented groups.","faq":[{"q":"What is a Mamiya 645 150mm f\/3.5 worth in 2026?","a":"Both UK auction sales on file hammered at £60, so a typical user-grade copy is worth around that figure at saleroom level, with cleaner examples likely to price slightly higher through dealers."},{"q":"How much does a Mamiya 645 150mm f\/3.5 sell for at UK auction?","a":"Recent hammer prices sit at £60, before buyer's and seller's commission are added."},{"q":"Will this lens fit a Mamiya 645 AFD body?","a":"It is a manual-focus 645 lens and mounts on Mamiya 645 bodies including the AF\/AFD series, but it will operate as a manual-focus, stop-down lens on autofocus cameras."},{"q":"Is the 150mm f\/3.5 a good portrait lens on 645?","a":"The focal length on 6x4.5 covers a similar angle of view to a short telephoto on 35mm, which is why it is commonly used for head-and-shoulders portraiture."}],"confidence":35,"reasoning":"Only two auction sales and no SPECS or variant data were supplied, so price commentary is grounded but optical and production detail had to be omitted."}