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什?是膠片折痕

膠片表現為不平整的折痕,由於折痕部分增加了阻光作用,使影像出現顏色和密度的改變。這樣的問題多出現在膠片沖洗之後,在保管中不小心所造成的。所以我們必須注意自己膠片的保存條件,珍貴的膠片應當保存在專用的底片夾中,幻燈片應當裝進片框中保存和使用。較輕的底片折痕可以在照片上修整。 另外,還有一種月牙狀的彎型折痕,一般有手指甲尖大小,在反轉片上表現為帶淡藍色的折痕。而在底片上常表現為深色的折痕。這樣的痕跡多數是由於在沖洗之前,在暗室中從膠片暗盒中取出膠卷的時候。以及在將膠卷裝進顯影罐的時候,用手操作過重,對膠卷形成的折痕。膠片是非常嬌嫩的物品,稍不注意即會造成不同程度的損傷。因此,我們無論在什麼時候,凡是用手處理膠片,都必須特別小心。但是如果送到加工部

 

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But the day of summe

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