Neutral density filter, diameter 20mm, C interface /SM1 thread, 1pcs Transmittance 0.01%~10% optional.(0.1% SM1 Thread)

20mm Neutral Density Filter devised to reduce visible light, enhancing your photography and videography experience. Transmittance range of 0.01% to 10% allows for precise control over light entering your optical system, perfect for various lighting conditions. Features anti-reflection coatings (400-700nm) that minimize backward reflections, ensuring clearer and sharper images. Includes a durable mounting bracket compatible with both C-Mount and SM1 threads, providing versatile installation options for your equipment. Constructed from aluminum alloy with anodic treatment, ensuring longevity and resistance to wear and tear for reliable performance.