The Yashinon-DX 28mm was a wide angle lens made by Yashica in the 1970s. It had a maximum aperture of f/2.8 and a minimum of f/16. The Yashinon-DX 28mm had an angle of view of 75º and a minimum focus of 0.4 m (1.25 ft). This wide angle lens was made of 8 elements in 7 groups and used an m42 screw mount. It provided a wider coverage than a 35mm lens and produced a dynamic effect when shooting subjects at close range. Filter size was 62mm.