The Alpa 11el Half-Frame (halbformat) is a 35mm SLR configured for the half-frame format, producing roughly 18×24mm exposures on standard 35mm film. It belongs to the Alpa line built by Pignons in Switzerland, a low-volume Swiss SLR maker whose cameras were positioned at the premium end of the precision-instrument market.

Auction data for this specific half-frame Alpa is very thin: the only recorded UK auction hammer result we have is £2,000 from May 2009, a wholesale saleroom figure that excludes commission. With just one data point, a meaningful price range or median cannot be quoted, and what an Alpa 11el half-frame sells for today depends heavily on condition, completeness and bidder competition on the day. Buyers researching what one of these is worth in 2026 should treat that single historical hammer as a directional reference rather than a current market value.