Jupiter F-21 Button Camera

{"overview":"The Jupiter F-21 is a Soviet-era subminiature camera designed for covert photography, often referred to as a \"button camera\" because it was built to be concealed inside a coat with the lens disguised behind a false button. Completeness drives value: outfits that include the button-front trigger cable, spare cassettes and original case tend to sell for more than a bare body, while rough or seized examples fetch less.","buying_guide":"Inspect the clockwork wind and shutter for smooth operation, as dried lubricants commonly cause the spring motor to stall or run erratically, and check the lens and viewing aperture for haze or fungus.

Generated summary, 23 Apr 2026 — not checked by hand; prices on this page come from the sales, not from this text.