82mm Magnetic UV Filter Ultra Slim with Multi Coated Ultraviolet Protection Lens Filter with Cleaning Cloth Nano-Klear Series

SKU: KF01.2649

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Yes, the UV filter is mainly used as a protective filter. It is installed on the lens for a long time to protect the lens. 
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The products fit perfectly together and there is no risk of light leakage 
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The magnetic force will not disappear or weaken. All our magnetic products use neodymium iron boron magnets, which are materials that can maintain constant magnetism. They are the permanent magnets with the strongest magnetic force at room temperature so far. The applicable ambient temperature is below 80 degrees. . 
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It is not easy to fall off. We have tested with the camera that the filter will not fall off during normal use or swing, unless it is thrown out maliciously. Our frames and lenses are also relatively thin, which can reduce weight and increase magnetism. 
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If it is a magnetic filter from K&F CONCEPT, it will work as long as the caliber is the same. It is not possible if it is a threaded or other brand filter. 
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MCUV can function as a magnetic adapter.