The Mamiya 6 MF is a medium format rangefinder camera using 120/220 roll film, with the "MF" designation denoting the multi-format variant that adds 35mm panoramic and 645 masking options to the standard 6x6 frame. It takes interchangeable G-series lenses and was positioned as a compact, folding-strut rangefinder for travel and reportage work on medium format.

At recent UK auction, hammer prices for the Mamiya 6 MF have ranged from £1,200 to £2,400, with a median around £2,000 — wholesale saleroom results rather than dealer retail. Values today are condition-sensitive, and clean bodies paired with a working 75mm G lens tend to sell for the higher end of that range, which is why buyers researching what a 6 MF is worth should weigh outfit completeness heavily.