-【Premium Quality Glass】The Polarizing Filter is made of the best Japanese optical glass with almost zero light distortion. Featured with top level of filter function, effectively eliminate harmful reflective light. - 【Double Coated】Adopted 28-Layer multi-resistant double coating technology, the green coating helps effectively reduce filter surface reflection and the ghosting while making the filter anti-scratch, water repellent, oil and dust resistant. -【Circular Polarising 】Effectively filter out harmful reflections on non-metallic surfaces such as water and glass, Rotate the filter to achieve the correct amount of filtration required. With CPL,you can make the sky bluer, the leaves greener, reduce or eliminate reflections, and the final image is clearer. -【Ultra Slim and Lightweight】Super slim and lightweight aluminum frame, maximum reduce impact on light and effectively avoid dark corner for wide-angle shooting. -【For all 40.5mm Lens】Compatible with all the major lens brands such as Canon, Nikon, Sony, Fuji, Leica, Panasonic and any other brands which have a 40.5mm diameter thread.