The Zeiss Ikon Hexacon is a rebranded Contax D 35mm SLR camera. It was made post-WWII by Zeiss Ikon VEB Dresden and then rebranded the Hexacon for the Peerless Camera company in New York. As a Contax D, it is noteworthy for being one of the earliest models of 35mm SLR to have a pentaprism. The camera uses the M42 threaded lens mount, later made popular by Pentax. Otherwise its controls are pretty simple, especially compared to modern cameras.
The Hexacon uses a cloth, focal plane shutter that has shutter speeds ranging from 1 second up to 1/1000th. Aperture is set manually on the lens itself, but the camera predates automatic aperture diaphragms that closed down at the moment of exposure, meaning this camera uses preset apertures that stop down as they are set. The Hexacon also lacks an instant return mirror.
za/sd
VEB Zeiss Ikon Hexacon
This Hexacon is really a Pentacon, and this Pentacon is really a Contax. Here's how that works.
In the late 1940s, Zeiss Ikon introduced the Contax S camera. It had the distinction of being one of the world's first 35mm SLRs with a pentaprism that provided not only a right-side up image, but one that was corrected left-to-right as well. The Contax S has a remarkable place in camera history, by the way, but that story is for another day.
Shortly after the war, Zeiss Ikon, along with the rest of Germany, was split into an east and west half. In a series of lawsuits, the eastern Zeiss Ikon lost the rights to use several brand names that had previously been on the company's cameras. Contax was one of those names. So when the Contax S was succeeded by the Contax D, the East German Zeiss Ikon sold it as a Contax in the Eastern Bloc, but had to rename the camera as a Pentacon (PENTAprism CONtax) for export. To fully tie up this thread, some Pentacons were re-labeled as Hexacons, specifically for the Peerless Camera Store of New York City. Peerless was a large department store that specialized in photographic products; they had their private labels rebranding a number of cameras at this time, these Pentacon/Hexacons being but one example.
The Hexacon/Pentacon/Contax S/D cameras are pretty simple by today's standards. Their most interesting feature - other than the pentaprism - is the use of the M42 lens mount, which would go on to become an extremely popular lens mount. But the combination of a cloth focal plane shutter and the thin metal used for the internal gearing means most of these cameras are now no longer in great working order. This example not being an exception.