Kenko
[Like the rendering of old lenses.] A soft filter that reduces contrast and softens the tones of photos.
[The "opposite" of Black Mist] White Mist is the opposite of "Black Mist," using a white diffusing material. It has a stronger contrast-reducing effect than Black Mist, reducing saturation and creating softer tones.
[Even high-performance lenses with sharp images are given a subtly soft rendering.] Even when attached to high-resolution cameras such as 40-megapixel cameras and the latest lenses that produce sharp images, it subtly softens the rendering, like an old lens. It retains the sharpness of the focus while creating a subtly soft rendering, resulting in an exquisite softness that doesn't feel like a filter is being used.
[When you want to create flare.] While it's generally considered better to avoid flare, more and more people are incorporating it as a form of expression when they prefer the rendering and effect of old lenses. When shooting against the light with a white mist filter, a soft, diffused flare appears, similar to that of an old lens, further enhancing the dramatic atmosphere of backlit shots.
*The effect may vary depending on the focal length of your lens and the type of light source in your composition. Also, the effect seen through the viewfinder may differ from the actual result.