The Ernemann Film K is a roll-film folding camera taking 6x6 cm exposures, made by the Dresden manufacturer Ernemann in the early twentieth century before the firm was absorbed into Zeiss Ikon in 1926. It sits in the mid-tier folding-camera category of its era, aimed at amateur photographers wanting a pocketable roll-film instrument.

Auction evidence for this model is thin: the two recorded UK saleroom results, both from 2003, were £125 and £138 at the hammer, giving a narrow range and a midpoint around £130. Those figures reflect wholesale auction levels rather than dealer retail, and as of today buyers should expect condition — bellows integrity, shutter function, and lens clarity — to drive what a Film K is worth far more than headline averages suggest.