The Viltrox Pro Series Ultra Slim MC UV Protection Filter is a professional imaging accessory designed to protect camera lenses while maintaining optical clarity. This 52 mm filter features an ultra-thin, multi-coated construction that achieves light transmission of up to 99.5 percent in the visible spectrum from 420 to 700 nm, ensuring minimal light loss and balanced color reproduction. With a surface reflection of only 0.3 percent, it effectively reduces lens reflections and light scattering for sharper and more realistic images. The filter is made from B270 professional optical glass, known for its durability and scratch resistance, and includes a UV blocking layer that prevents ultraviolet rays below 390 nm from causing bluish color casts in photos. An 18-layer high transmission coating technology ensures uniform light passage and vibrant color reproduction. The frame is precision-machined from aluminum alloy, measuring just 3.2 mm in thickness to avoid vignetting with wide-angle lenses, and features a matte coating to absorb stray light. Additional features include water-repellent and oil-resistant coatings for easy cleaning and maintenance, as well as a high hardness of 96 HD for reliable performance under various shooting conditions. This filter is compatible with lenses marked with a diameter of 52 mm and is part of the Viltrox Pro Series, which emphasizes precision manufacturing and optical quality for photographic applications.