The Mamiya Sekor 80mm f/2.8 is the standard lens for the Mamiyaflex and C-series twin-lens reflex cameras, covering a normal angle of view on 6x6 medium-format film. Designed as the everyday workhorse for the interchangeable-lens TLR system, it pairs a taking lens with a matched viewing lens on a single front plate.

The single recorded UK auction hammer result for the 80mm f/2.8 in our dataset is £100 from October 2025, reflecting wholesale saleroom level rather than dealer retail pricing. With only one data point, this is best read as an indicative figure for what a usable copy sells for at auction in 2026 rather than a firm market value, and condition swings the price more than any narrow median range would suggest.