The 40.5mm Ethereal ¼ Diffusion Lens Filter by Urth is a high-quality screw filter specifically designed for photographers and videographers who wish to achieve a soft, dreamlike aesthetic in their shots. This Black Mist filter provides subtle diffusion of light, softening contrasts and enhancing image quality. Using this filter can help make skin tones appear smoother and create a pleasing atmosphere in portrait and landscape photography. The filter is elegantly designed in black and easily screws onto lenses with a diameter of 40.5mm. It is ideal for creative applications where a certain softness and a touch of mystique are desired. The Ethereal ¼ Diffusion Lens Filter is an essential tool for anyone looking to elevate their photographic and cinematic work without compromising the sharpness and clarity of the images.