Kenko BLACK MIST PROTECTOR 52mm Kenko Black Mist Protector I only used it once indoors after purchasing. It's in beautiful condition with no noticeable scratches. I'm selling it because I accidentally bought the wrong one. From the manufacturer's website: A lens filter with a soft effect equivalent to 1/4 of "Black Mist No.1," which creates an impressive, cinematic atmosphere in night scenes and backlit photography. Because the soft effect is subtle, you can leave it on your lens like a protective filter. It features a multi-coating that prevents flare and ghosting, and a water-repellent and oil-repellent coating that repels water droplets and dirt, enhancing its function as a lens protection filter. Kenko's representative soft filter, "Black Mist," is a filter that sandwiches extremely fine black diffusion material between optical glass. It suppresses the contrast between highlights and shadows, and also impressively diffuses light in night scenes, allowing you to achieve a subtle nuance that resembles a scene from a movie. The appeal of Black Mist is that you can get a cinematic texture on the spot without retouching. The "Black Mist Protector" has a soft effect equivalent to 1/4 of "Black Mist No.1" and 1/2 of "Black Mist No.05." By weakening the soft effect, you can leave it on at all times, and it can subtly enhance the effect in backlit scenes or scenes with strong light sources. It is also recommended for video shooting. Immediate purchase is OK. No price reduction.