The Wollensak Fastax is a high-speed cine camera, built for scientific and industrial motion analysis where frame rates well above standard cinematography were required. It is a specialist instrument rather than a consumer stills or movie camera.

Public UK auction data for the Fastax is extremely thin: a single recorded hammer result of £800 in 2004 is the only saleroom reference available, so any current price guidance is indicative rather than firm. Because these are specialist research instruments, what a Fastax sells for today at auction depends heavily on completeness, working condition and whether timing/control gear is included; without more recent comparables, a reliable median or range cannot be quoted.