K&F Concept Black Diffusion 1/4 Filter Special Effect Filter Creates Dream Cinematic Hazy Effect for Image & Video • Reduces highlights and lowers glare. • The surface's high-tech film is waterproof, scratch-resistant, and oil-proof, protects the black diffusion filter from all around, and extends the service life. • Imported Japanese AGC optical glass with double-side polishing technology ensures high definite image quality. • Soften wrinkles, blemishes, and pores while maintaining skin tone values, making wrinkles less noticeable. • Creates a soft quality of light and pastel effect, delicate and hazy cinematic effect, and provides a soothing effect on skin tones. • Uses the K&F Concept nanometer coating process to protect the filter effect between two pieces of glass, which doesn't affect image quality. Unique 28 multi-layer coatings, function effectively reduced the reflection that came from both the ground and the filter itself, ensuring the light transmittance to 84%. Even at its lowest density this black diffusion 1/4 filter can soft wrinkles and pores of human skin, it delivers an effective increase in the halation which adds a pleasing depth of warmth showing the delicate and hazy movie effect in images but is not transported to the skin tone values.