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改革开放的初期,国内各兵工企业开始从封闭式的军用品生产逐步转向面对大众的民用消费品生产。其中,以生产军用光学产品为主的厂家,先后均以较强的技术力量与设备转项生产照相机和镜头。各厂家初期是根据自己的技术和条件并按上级下达的计划,仿造“海鸥”牌203、205、120/4型等系列类似相机。后来各自又引进了几款国外相机生产线,开始生产当时国内尚属较高档次的135型相机,如大家熟悉的“海鸥DF”、“珠江S-201”等品牌。
In the initial stage of reform and opening up, all military and civilian enterprises in China began to gradually shift from the production of closed military products to the production of consumer goods for the general public. Among them, the manufacturers that produce mainly military optical products have successively transformed the cameras and lenses with strong technical force and equipment. The initial stage of each factory is based on their own technology and conditions and according to the plan issued by superiors, imitation “Seagull” brand 203,205,120 / 4 and other series of similar cameras. Later, each of them introduced several foreign camera production lines and started to produce 135 type cameras of the higher grade at that time in China, such as “Seagull DF” and “Pearl River S-201” which are all familiar with.