K&F Concept Nano-X Magnetic 77mm Circular Polarizer (CPL) — Magnetic Basic Ring + Filter Cap, 28 Multi-Layer Coatings

Improve color and contrast: This 77mm circular polarizer removes unwanted reflections from non-metallic surfaces like water and glass, boosting color saturation and contrast—especially useful for deepening blue skies and making white clouds pop. Fast magnetic mounting: The magnetic attachment enables a 1 second swap, protecting the lens threads from scratches and damage. The 5.3mm ultra-slim frame is designed to prevent vignetting on wide-angle and telephoto lenses. Premium optics: Constructed from Japanese AGC optical glass to preserve image sharpness and overall picture quality. Durable multi-coatings: Both faces of the glass receive 28 nanometer multi-layer coatings that are abrasion-resistant, hydrophobic, and increase surface hardness for easier cleaning. Kit contents: 1* CPL filter + 1* magnetic basic ring + 1* filter cap. Fit note: This filter only fits lenses with the same thread size—check the diameter on your lens (preceded by the “Ø” symbol). Example: Ø77 = 77mm lens thread size.