The Tiffen Bronze Glimmerglass 4 Filter measuring 4 x 5.65" is a beauty filter with a dual function: in addition to modifying the appearance of the image itself, it has a sparkling appearance when viewed from the front, inspiring greater confidence in the model. The filter itself imparts a bronze tint to the entire image and helps soften skin detail and imperfections. It also produces luminous highlights and a slight reduction in contrast for a more ethereal look. Density 4 offers more bronze tint than 3, but less than 5. nnThis filter is manufactured using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and polishing it flat to a tolerance of 1/10,000th of an inch. This filter measures 4 x 5.65" / 101.6 x 143.5 mm.nnn- The bronze tint brings additional warmth to the image and helps soften skin detail and imperfections.n- Produces luminous highlights and a slight reduction in contrast for a more ethereal image appearance.n- When viewed from the subject's perspective, the filter appears to sparkle and helps inspire confidence in models, which can result in better performance.nnnSpecificationsnn