XCSOURCE 58mm 9pcs Graduated Color Filter Kit Orange Blue Grey Red Green Purple Pink Yellow Brown For EOS 650D 50D 40D 400D 450D Rebel T1i T2i T3i 600D 550D LF498 1.Graduated color filters provide a gradual color transition for a smooth blending effect. Give your landscape and skin texture a more colorful touch. Perfect for changing the mood of a picture. 2.This filter is double threaded allowing additional filters to be screwed one over the other. 3.Using two color graduated filters rotated 180 degrees relative to each other allows different colors to fade into each other. 4.High quality metal and resin construction. extremely solid and lightweight. No wobbling or cross-threading.