The Tiffen 4 x 4" Nude/FX 6 filter is a skin tone enhancement filter that brings a delicate warmth to the image and helps reduce blemishes. This filter works by infusing the background areas of the scene with the filter's hue and blending skin tones with additional warmth. Density 6 offers a more pronounced skin tone enhancement than density 5. nnTiffen filters are manufactured using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and polishing it to a tolerance of 1/10,000th of an inch. This filter measures 4 x 4" / 101.6 x 101.6 mm.nnnFeatures:nn- Enhances skin tones and reduces blemishes.n- Brings additional warmth to the entire image for a pleasant and luminous rendering.n- Helps reduce bluish tints and improve the radiance of skin tones.nnnSpecifications:nn- Type: Skin tone enhancement filtern- Size: 4 x 4" / 101.6 x 101.6 mmn- Density: 6n- Effect: Brings warmth and control for skin tone photographyn- Construction: ColorCore Technology