The Mamiya 7 150mm f/4.5 is a medium-telephoto lens for the Mamiya 7 and 7 II rangefinder system, covering the 6x7 format. With its moderate maximum aperture and rangefinder-coupled design, it was intended as a portrait and short-telephoto option alongside the system's wider primes, and remains valued for its compact size relative to the negative it covers.

At recent UK auction, hammer prices for this lens have ranged from £119 in January 2023 to £164 in October 2025, giving a midpoint of around £142 across the limited sales on record. With only two saleroom results to draw on, the data points to a working market in the £120–£165 band as of today, though clean, complete copies with original hood and caps tend to push toward the upper end of what the lens sells for.