Paint the sky in provocative colors! The COKIN Fluo gradient filters feature explosive colors. You can always benefit from their saturation when you want to contrast them with particularly bright colors in your subjects. A field of flowers, a bright yellow house, your model in a fluorescent pink jogging suit... the list is endless. The COKIN Fluo gradient filters do not do subtlety. They prefer the fire of exuberant passion over romantic sentiments. Give them Amazons with blood-red lips and extravagant clothing, surfers in vibrant Bermuda shorts.