NanoPro Coating Haida NanoPro MC Circular Polarizer Filter | Multi-Coated | 49/52 Haida Screw In Filters The polarizer filter features glass optics with a top coating that protects against water, oil, dust, fingerprints, and scratches. Haida ND6.0 (1000000x) Filter for Caera Nanopro Neutral Density C... Please verify your camera's lens thread size before ordering. Magnetic Haida filters – fast & high quality If you have any questions about Haida products, you can contact us at any time Your camera's lens thread size will be marked somewhere on the lens barrel or printed underneath your lens cap. With the ring screwed on, you can then magnetically attach the polarizer filter and easily swap it out. | The adapter ring has both front and rear 52mm-82mm threads and accepts standard threaded as well as Haida magnetic lens caps on the front It can be kept on your lens at all times. The Nano coating associated Circular Polarizer Filter provides an additional layer that results in an improved beading effect when the surface comes in contact with water or oil, allowing for more efficient cleaning. This filter is constructed from optical glass for clarity and color fidelity.