77mm MCUV Lens Filter Nano-X Series - 28 Multi-Layer Coatings HD/Waterproof/Scratch Resistant for Camera Lens

SKU: KF01.1868

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I have the 77 mm filter and it appears to have threads to stack another filter of the same size. 
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Yes, both sides of the glass with thread 
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Hi, this MC UV protection filter is made of shockproof tempered glass, not only with the waterproof, scratch-resistant coating but also shockproof, one more protection of the camera lens.