The Zorki S 35mm rangefinder cameras were manufactured by KMZ and produced between 1955 and 1958 in the former Soviet Union. These models are something of a vintage camera favorite. These Zorki-Cs are basic manual film cameras designed so the user fixed an electronic flash, which was synchronized at a rate of 1/25 of a second. They are a manual camera made for black and white exposures. The camera body has a 39-millimeter mount to attach interchangeable lenses. Although this C model doesn’t have a self-timer, it does have a range of aperture settings to cover many kinds of situations. You can set it at 1/25, 1/50, 1/100, 1/250 and 1/500 of a second. As with other Soviet-era rangefinders, the aperture speed selector rotates when the shutter is released, and should not be changed until after it has been cocked. If you change the speed without cocking the shutter first, the setting pin can be broken when you advance the film and cock the shutter. The Zorki C (Cyrillic for "S" for synchronized) included a built-in connector for both bulb and electronic light. Some other features include the in-built lenses, which is an Industar-50 50 millimeter f/3.5 and collapsible and an aperture range of f/3.5 - f/16. This camera is easily set, using a scale and ring on the lens front. It has a focal range of 1.2-20 meters to infinity. The aperture consists of a focal-plane double cloth curtain horizontally moving, which can reach speeds of between 1/25 to 1/500. Lock the focusing levers on infinity, and use winding knobs to cock the aperture, as the manual features on this camera allow for precise specification. The frame counter also features a manual reset. The viewfinder is a simple reverse telescope finder, allowing for exceptional clarity as you look through. You'll find the rangefinder on the back left for convenience. There is a cold-shoe slot to add a flash on the front of the cameras and below it the tripod socket fits a 3/8-inch head. Load the film using a level and the camera's bottom loading plate. The picture frame size is 24 by 36 millimeters and you can use 35 millimeter roll in it. Locate the film rewind switch around the aperture release mechanism. Zorki S rangefinder cameras were redesigns of the Zorki 1, with added features to its top. The bodies come in vulcanite and black. It's a metal body weighing 509 grams and a lot of what you expect to be marked in English is engraved on the body in Russian. Soviet-made cameras have become quite the trend among vintage photographic equipment collectors and those who love old-style film cameras in recent years.