The Marumi EXUS Circular Polarization Filter is of the same quality as a professional ‘top filter’ for a fraction of the price. The Marumi EXUS filters are made up of a special coating to counteract unwanted reflections, a matte black metal rim and black glass edges to minimize internal reflections. Further, the EXUS filters contain an antistatic, water repellent and oil repellent coating, making them one of the best filters on the market.