Schneider White Frost filters are primarily picture styling or mood modifying tools. They subtly "flare" highlights and very slightly tone down contrast, while having no effect on image resolution or color reproduction.
These filters are very useful for adding a "halo" around light sources, "blown windows," or any other area of high exposure. They can also be used to reduce picture contrast by lowering white exposure, and can help you create a romantic or "period" look.
Depending on the strength chosen, they enhance a scene, subtly or strongly, without reducing image resolution. If you prefer a softened, romantic image, a White Frost filter can be combined with a Schneider Classic Soft filter.
This filter is available in strengths of 1/8, 1/4, 1/2, 1, and 2. These strengths achieve a subtle to a heavy effect.