This Freewell 58mm Magnetic Quick-Swap Circular Polarizer Filter helps reduce reflections and glare by filtering out light that has become polarized due to reflection from a nonmetallic surface. This results in a noticeable increase in the saturation of skies and foliage. An included Freewell 58mm magnetic adapter ring allows the circular polarizer filter to be used on a lens with 58mm front filter threads. Each surface of the Freewell 58mm Magnetic Quick-Swap Circular Polarizer Filter is multi-coated to help eliminate internal ghosting and reflections. It also features a resistance coating that offers greater protection to oil, dust, and scratches, and it helps it stay clean longer than uncoated filters. The coatings are also hydrophobic, resulting in an improved beading effect when in contact with water for greater cleaning efficiency. The Freewell 58mm Magnetic Quick-Swap Circular Polarizer Filter also includes 58mm front threads, permitting the use of screw-on filters with 58mm rear threads.