The Ernemann HEAG X Tropen (Tropical) is a folding plate camera produced by the Dresden firm Ernemann in the early twentieth century. Tropical models were finished in teak with brown leather bellows and polished metalwork, intended for use in hot, humid climates where standard leather-covered bodies degraded.

Sales data for the HEAG X Tropen is thin, but a UK auction hammer result from June 2022 saw an example sell for £1,300, which remains the reference point for what this model is worth today. Because this figure is a wholesale saleroom result rather than a retail price, dealer asking prices for comparable examples typically run higher, and condition of the teak shell, bellows and shutter heavily influences the value achieved.