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胶卷怎么放进去
更新时间: 2020-11-03 00:00:00  

打开相机的后盖,把胶卷插入左侧转轴。拉出胶卷至右侧插槽,使胶卷的上下方形过片孔扣住过片转轴的卡子。合上后盖开启相机电源,按一下快门就会自动上片,代表胶卷已经装好了。

胶卷又名菲林、底片、胶片,是一种成像器材。现今广泛应用的胶片是将卤化银涂抹在聚乙酸酯片基上,此种胶片为软性,卷成整卷方便使用,所以又称胶卷,当有光线照射到卤化银上时,卤化银转变为黑色的银,经显影工艺后固定于片基,成为我们常见到黑白负片。彩色负片则涂抹了三层卤化银以表现三原色。除了负片之外还有正片及一次成像胶片等等。

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