What's the function of movies besides Kodak filter?

Does the subject want to ask, "What else is there in the movie besides Kodak filter?" Optical filter, color filter. According to official website of China Film Association, besides Kodak filter, there are optical filter and color filter, in which optical filter only processes the image, changes the composition and geometry of the picture or blocks or blocks the transmission of light, but does not change the color of the picture itself, and color filter can change the color composition of the picture. The main function of Kodak filter is to make people's skin appear smoother and more delicate, and at the same time highlight the layering and luster of skin.