The Semi Minolta IIIA is a folding medium-format camera that takes 120 roll film in the 6x4.5cm "semi" format. It is a pre-war Japanese folder from the late 1930s, positioned as a compact roll-film camera for general photography.

With only a single tracked UK auction hammer result, the Semi Minolta IIIA sold for £50 in 2021 at saleroom level (wholesale, before commission), so today's value guidance is necessarily thin. On that limited evidence the camera sells for modest sums, and its worth is highly condition-sensitive — bellows integrity, shutter accuracy and lens clarity will move the price more than any other factor.