HDFX Limited Edition High Definition 37mm Multi Coated Pure Glass 3 Piece Filter Kit (UV, CPL, FL) for Canon Vixia HF R200, HF R20, HF R21 Camcorder High Definition HD3 Technology offers genuine color protection low-dispersion Multi-Coated and heat treated glass to eliminate distortion and minimize light reflections,glass Each Lens is Multi Coated Made From Pure Crystalized Glass Life Time Warranty Carrying Case Included