Check the listing for details. K&F Concept 40.5MM CPL Filter Circular Polarizing Filter Polarized MRC Filter. Condition: New. Listed at 33.99 USD. About this item 【Premium Quality】Made of Germany imported optical glass with almost zero light distortion. Featured with top level of filter function, effectively eliminate harmful reflective light. 【MRC Featured】Adopted 18-Layer multi-resistant 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. 【Double Sides Polishing】Designed by double polishing technology, it helps you shoot a clear and natural color image even under a 500mm telephoto lens. 【Ultra Slim and Lightweight】Super slim and lightweight aluminum frame, maximum reduce impact on light and effectively avoid dark corner for wide-angle shooting. 【Security and Environmental Protection】Meet EU environmental standard of RoHS. Product Description K&F Concept CPL Lens Filter The K&F Polarizing Filter has 18 layers of Multi Resistance Coating(MRC) Oil resistant, water resistant, scratch resistant. German optical glass, 99.6% polarization rate for superb anti-reflective capabilities Polarizers removes glare from non-metallic surfaces, such as windows and water. It also provides color and contrast enhancement, such as producing a deep, dramatically blue skies. Functions Cut polarized light's reflection from water, glass and non-metallic surfaces for stronger colours Nano coating greatly reduce the flare and ghosting caused by reflections Black matte aluminum frames Ultra thin filter frames to help avoid vignetting on wide angle lenses also designed to hold a lens cap. knurling edge for non-slip, easy attachment and removal(see the 7th picture to remove the cpl easily) Remember to choose the right size~ Your camera's lens thread size will be marked somewhere on the lens barrel or printed underneath your lens cap.