• Nano-K Series Variable ND2-ND400 Filter – Made of top optical glass and aluminum alloy frame, adopt 18 layer MRC coating, with 1-9 stops of adjustable light reduction and 360 rotation for precise dimming settings, this filter is perfect for diverse scenarios.
• Light Reduction- The variable ND2-ND400 filter helps reduce the amount of light reaching the lens without affecting the color.
• Widely Compatibility- The clip can be clamped on most smartphones to take pictures like a professional SLR camera. The 52mm VND filter can also work with the DSLR cameras with 52mm lens thread.

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• K&F Concept 52mm Nano-K Series CPL Filter – Made by Japanese imported AGC glass, no effect on the image color, and restores the natural color. Adopt 18-layer MRC coating, which reduces reflection, and glare and improves color saturation and contrast.
• Enhance Color & Contrast – CPL filter can enhance the color and contrast, and remove non-metallic reflections such as water, and glass to show the true color, especially used in white cloud and blue sky photography.
• Widely Compatibility – The clip can be clamped on most smartphones to take pictures like a professional SLR camera. The 52mm CPL filter can also work with the DSLR cameras with 52mm lens thread.