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They come in different shapes and sizes and can also be cut to size. You will see the effects of gels being used regularly in movies, theatre, TV and photography for colour correcting, to emphasize a particular mood, or enhance the scene. In portraiture, you can use acetate gels to change the colour of the backdrop giving you a wide choice of background colours; and you can also light your subject with them for creative and dramatic effects. Gels come in many colours so that you can find the
