Super Rokkor

Rokkor was a brand name used for all Chiyoda Kōgaku Seikō and later Minolta lenses between 1940 and 1980, including a few, which were marketed and sold by other companies like Leica. The name was derived from the name of Rokkō (六甲山), a 932 m high mountain, which could be seen from the company's glass-making and optics factory at Mukogawa near Osaka, Japan. The company's founder Kazuo Tashima () wanted the name to symbolize the high quality in optics.

The first lens to carry the Rokkor designation was a 200mm f/4.5 lens that came with the hand-holdable aerial camera Chiyoda SK-100 in 1940. After the Rokkor name was dropped and no longer engraved in new lenses after 1980/1981, the Rokkor name resurfaced two times. As was revealed not before 2006, the Rokkor name was still used internally for prototypes of a never released SR-mount Minolta MD Apo Tele Rokkor 300mm f/2.8 manual-focus lens in the early 1980s, a lens design, which later saw life as the A-mount Minolta AF Apo Tele 300mm f/2.8 G in 1985, a non-Rokkor auto-focus lens. The Rokkor name was also resurrected for a short time between 1996 and 1998 for the Minolta G-Rokkor 28mm f/3.5 lens. As the only officially released auto-focus Rokkor ever, this lens was incorporated into the Minolta TC-1 135 film compact camera. To celebrate Minolta's 70th anniversary in 1998, the same optics were also used in the Minolta TC-1 Limited as well as in a Leica thread-mount version of the lens in a limited production run of 2000 units for the Japanese market only.

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