《长江》牌120全色胶卷是化工部第一胶片厂生产的精装出口产品。与该厂生产的《太行》牌内销产品在照相质量方面比较,还是有些特点的。例如,灰雾度低,宽容度比较大、粒子细、解像力高等。根据我们的测试结果,对于它的质量情况,整理介绍如下,仅供参考。 “Changjiang” brand 120 panchromatic film is hardcover export products produced by the first film factory of the Ministry of Chemical Industry. And the factory production of “Taihang” brand domestic product comparison in the quality of photographs, or some characteristics. For example, low fog, tolerance is relatively large, fine particles, high resolution. According to our test results, for its quality, finishing introduction is as follows, for reference purposes only.