The refractive HD Soft Gold filter uses the latest developments in materials and technology to soften outlines and enhance flesh tones, removing blueness and facial blemishes without distortion.
Tiny particles within the skin tone enhancing matrix bounce incoming light onto the reverse face of the glass filter. Total internal reflection projects the light into the camera lens, refracted by the glass, softening and enhancing the tone of the image but without losing contrast.
The HD Soft Gold filter is available in grades 1, 2 and 3.
For more information, please see this
HD Soft filters technical information PDF