The Alpa 4b is a 35mm rangefinder/SLR-style camera produced by Pignons of Switzerland, part of the Alpa Reflex line of precision Swiss cameras introduced in the mid-20th century. It was positioned at the upper end of the market when new, sold to enthusiasts and professionals who valued Swiss-made build quality over higher-volume Japanese and German alternatives.

At UK auction in late 2025, an Alpa 4b achieved a hammer price of £3,000, which is the only verified saleroom result currently on file and gives a working reference point for what the model is worth today. Because this figure reflects a wholesale auction-hammer level rather than a dealer asking price, retail value with warranty and servicing typically sits higher. With only a single data point, the price a given example sells for can vary substantially with cosmetic condition, mechanical health and whether a matching lens is included.