The Mamiya 645 35mm f/3.5 is a wide-angle lens for the Mamiya 645 medium format system, covering a field of view roughly equivalent to a 22mm lens in 35mm terms. It was designed for landscape, architectural and interior work on 6x4.5 film bodies, with the focal length and f/3.5 maximum aperture making it one of the standard ultra-wide options in the 645 Sekor line.

At recent UK auction, hammer prices for this 35mm have ranged from £126 to £230, with a median around £220 based on the three results on file. As of 2026, clean copies continue to sell for the upper end of that range at saleroom level, while examples with optical or cosmetic issues drop toward the lower figure — remember these are wholesale hammer results rather than dealer retail, so what a collector pays in a shop is typically higher. Later Sekor A or N versions can command a premium over earlier Sekor C examples when condition is comparable.