The Lynx 1000 belongs to the Yashica Lynx series of cameras which are fixed lens, leaf shutter cameras made in the 1960s. There are three versions: one with lens 45mm f/2.8 and shutter 1/500, one with lens 45mm f/1.8 and shutter 1/1000 and another, with lens 50mm f/1.8 and shutter 1/1000. The first version is sometimes called Lynx 2.8. The Lynx 1000 was introduced in 1960. It has an f1.8 45 mm lens with 6 elements in 4 groups and is threaded at 46mm for adding a filter. The Copal-SV blade shutter is capable of a maximum speed of 1/1000 of a second, an extra stop faster than most other diaphragm shutters. Light is metered using a small selenium photovoltaic cell behind a lens array, powering a galvanometer. The film speed for the metering system can be set from 10 to 800 ASA. Focusing is manual and the camera does have an X-sync flash socket that works with all speeds plus a cold shoe. The camera also has a right thumb film advance lever, coupled viewfinder/rangefinder that is parallax corrected, fold down rewind crank, frame counter, and two hard points for attaching a strap.