Yellow filtering layer is an important component of colornegativefilm for ensuring a real color reproduction and improving the image sharpness.
黄滤色层是确保彩色底片彩色还原真实和提高影像清晰度的一项重要组分。
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The magnified black white positive separation plates of the negativecolorfilm were made with an ordinary enlarger and the filters of red, green and blue.