The Tiffen Glimmerglass 3 4.5-inch round filter is a dual-function beautifying filter: in addition to modifying the appearance of the image itself, it has a sparkling appearance when viewed from the front, thus inspiring more confidence in the model. The filter itself helps soften skin detail, blemishes and wrinkles. It also produces luminous highlights and a slight reduction in contrast for a more ethereal appearance. Density 3 offers moderate softening and overall image alteration.nnThis filter is manufactured using ColorCore technology, a process that involves laminating the filter substrate between 2 plates of optical glass, polishing it flat to a tolerance of 1/10,000th of an inch, then mounting it on precision metal rings.nnnFeatures:nn- Produces luminous highlights and a slight reduction in contrast for a more ethereal image appearance.n- Helps soften skin detail, blemishes and wrinkles.n- When viewed from the subject's perspective, the filter appears to sparkle and helps inspire confidence in models, which can improve their performance.nnnSpecifications:nn- Type: Softening filtern- Size: 4.5 inches / 114.3 mm (diameter)n- Grade: Density 3n- Effect: Produces luminous highlights and softens skin detailn- Construction: ColorCore technologyn- Front filter thread size: 4.5 inches / 114.3 mm (diameter)n- Front lens cap size: 4.5 inches / 114.3 mm (diameter)