The Alpa Mercure Satellite is a specialised microfilm camera produced by Pignons of Switzerland, the firm best known for the Alpa reflex line. It was a niche industrial-use instrument rather than a general-purpose still camera, which is why surviving examples rarely appear on the open market.

Public UK auction data for this model is extremely thin: a single recorded hammer result from 2006 sold for £600, and that figure remains the only concrete reference point for what an Alpa Mercure Satellite is worth at saleroom level today. With only one data point, any current price estimate is indicative rather than firm, and condition, completeness of accessories, and working order would all materially affect what the camera sells for.