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The Light Green 56 filter is ideal for blackk & White imaging in digital or traditional film. Light green. Absorbs some blue and red. Useful for dropping out green-brown graph lines when copying charts. In blackk & White, the Light Green 56 filter gives more pleasing skin tones and is perfectly suited for portraits photographed against the sky. this filter also darkens the sky and gives a better contrast to clouds. The green also lightens foliage and darkens red tones, perfect for flowers. Filters for blackk and white photography perform a variety of filtration effects including contrast control, enhanced skin tones, tonal corrections and more dramatic landscapes. Although originally intended for use with blackk and white film, these filters can also be used as a creative tool in color imaging.