The Siemens & Halske C is a cine camera produced by the German electrical and engineering firm Siemens & Halske, which manufactured 16mm amateur motion-picture equipment from the 1930s onward. It sits within the pre-war to mid-century amateur cine category rather than the stills market, and today it is collected primarily as a historical apparatus.

UK auction hammer results for the Siemens & Halske C are thin, with only two recorded sales: £446 at Christie's in 2000 and £800 in a 2014 Leitz Photographica Auction, giving a range of roughly £450–£800. As of 2026, values at saleroom level hinge heavily on cosmetic condition, mechanical function and completeness of accessories, and with so few data points any estimate of what the camera is worth today carries meaningful uncertainty. Expect the price a clean, working example sells for to sit within that historical range rather than below it.