The Cokin Color Conversion Filter - 82C Blue is designed to be used with the Cokin Creative Filter System - A Series. This filter cools down warm tones with the approprate blue. These blue filters re-establish the balance of natural colors when daylight takes on orange tones at sunrise and sunset. Scenes such as sandy beaches, snow, monuments, skycrapers, all recover their natural coloring. *Note: this filter is lighter in tone than the 82B Blue.