The Norita 66 system was initially introduced by the Japanese company Rittreck. There wasn't a viable 6x6 SLR in the Japanese market at the time, but Rittreck saw little success and had to sell their camera business to Norita Kogaku. With a few modifications, the Rittreck 6x6 became the Norita 66 (also sold as the Graflex Norita 66 in North America).

The defining feature of this system is its ultrafast 80mm f2 standard lens, which was the fastest lens for medium format cameras ever made at that time and gives the equivalent depth of field of an f1.1 lens on full frame/35mm.