This UV Filter blocks ultraviolet light and passes visible light - so your camera sees what you see. Crafted for fine lenses, HGX Prime filters are individually ground, polished, and coated. They repel dirt and transmit brilliant light to achieve the clearest possible image. Crafted for fine lenses, HGX Prime filters are individually ground, polished, and coated. They repel dirt and transmit brilliant light to achieve the clearest possible image.