The Tiffen Digital Diffusion/FX Filter is a softening and diffusion filter specifically meant to appear invisible, as if no filtration is being applied. Compared to other diffusion filters, this filter offers virtually no flare or loss of contrast for more subtle applications. It helps to lessen facial blemishes, wrinkles, and gently smooth textured backgrounds while maintaining sharp focus. Softening and diffusion filter for softening skin details and smoothing over textured backgrounds. Gives the impression no filtration is being used and helps to maintain clear focus. Water White optical glass for excellent clarity.