The Kowa Kalloflex is a 6x6 medium-format twin-lens reflex camera using 120 roll film, produced by the Japanese maker Kowa Optical. It sat in the post-war Japanese TLR field, a category aimed at amateur and semi-professional users seeking a more affordable alternative to higher-end European twin-lens reflex bodies.

Sales data for the Kalloflex is thin, so today's price guidance should be treated cautiously: a single recorded UK auction hammer result in 2024 sold for £180, and that figure is the only firm reference point for what the camera is worth at saleroom level. Because hammer prices reflect wholesale conditions rather than dealer retail, clean working examples may sell for more privately, while bodies with shutter or focus faults typically sell for less.