The Nikon EM is a beginner's level, interchangeable lens, 35 mm film, single lens reflex (SLR) camera. It was manufactured by Nippon Kogaku K. K. (today Nikon Corporation) in Japan from 1979 to 1982 (available new from dealer stock until circa 1984). The camera was designed for and marketed to the growing market of new women photographers then entering the SLR buyer's market. The EM uses a Seiko MFC-E focal plane shutter with a speed range of 1 to 1/1000 second plus Bulb and flash X-sync of 1/90 second. It is 86 mm (3.4 in) high, 135 mm (5.3 in) wide, 54 mm (2.1 in) deep and weighed 460 grams (16 oz). Unlike most Nikons of the time, it was available only in black. The EM has no full manual exposure mode capability, but instead was intended to be used by inexperienced photographers who could not easily master the intricacies of shutter speeds and f-stops. There were also significant changes over previous cameras in the internal mechanics and electronics of the EM, designed to lower costs.