K&F Concept Soft GND8 with Square Filter Holder, Graduated Neutral Density (GND) HD Optical Glass Waterproof ND Lens Kit

【Optical Glass GND8】The graduated 3 stops nd filter is made of Germany's top optical glass, with a transmittance of 12.5% and a reflectivity of 1.5%. Due to the precision grinding double-sided polishing, high-definition imaging is guaranteed. 【Function】Grad ND is suitable for large light ratio contrast between the sky and the ground. If the ground is normally exposed, the sky will be heavily burdened. The soft gradient filter can effectively balance the light ratio and contrast. 【Multi-layer coating】precision grinding and double-sided polishing ensure that the sharpness will not be affected on the telephoto lens, and can provide high-definition imaging. High-tech film makes it anti-mildew, waterproof, scratch-resistant and anti-greasy. 【Square Filter holder】it's made of aviation aluminum, processed by CNC integration, and all nut parts are made of copper. Width 100mm x thickness 2mm; this bracket can accommodate 2 filters 【8 adapters & Filter pouch】the square filter kit equipped with 49/ 52/ 58/ 62/ 67/ 72/ 77/ 82 mm 8 adapters; without deformation when used in -65°C to 210°C . Filter bag is made of leather, and the inner lining is thin sponge to protect the filter