The Foth-flex II is a German-made twin-lens reflex roll-film camera dating from the 1930s. Foth marketed it as a compact, lower-cost TLR alternative to larger format twin-lens designs of the period.

At recent UK auction, Foth-flex II hammer prices have sat in a narrow £40–£88 band across the two recorded saleroom results, with the more recent January 2025 sale reaching the higher end. With so few data points, what a Foth-flex II is worth in 2026 depends heavily on cosmetic condition and shutter function, and a clean, working example will sell for noticeably more than a shelf-display body.