MINGCAMCK1000毫米内测光单反照相机和珠S－20735毫米内测光单反相机都是由中国北方工厂集总公司所属企业重庆明佳光仪器厂生产，该工业现位于庆市南坪经济开发区六小区住国内。1988年以前该工厂村是同营明光仪器厂，旧厂在四川华蓥市。1985年工厂引进日本潘太克斯K1000型照机 MINGCAMCK1000 mm metering SLR camera and beads S-20735 mm metering SLR cameras are from the north of China factory headquartered subsidiary of Chongqing Ming Jiaguang instrument factory production, the industry is located in Qing City, Nanping Economic Development Zone six small area Live in China. Before 1988, the factory village was Tongming Mingguang Instrument Factory and the old factory was in Hualaitan, Sichuan. In 1985 the factory introduced Japan’s Pentax K1000-type camera