The Tiffen 4 x 5.65" Solid Blue 3 Clear filter is part of Tiffen's award-winning series of coloured filters and is one of the most widely used. They enhance reality, adding a touch of subtlety or drama to the image.nnThis filter gives you the ability to add more "punch" to an otherwise ordinary scene. Tiffen filters give you the control you need to create a scene rather than simply photograph a scene.nnThe Soft or Hard designation shows the degree of colour gradation.nnWhether at professional level or Photo 1, Tiffen filters have always been the industry's first choice.nnn- Add colourful excitement to a dull skyn- Change a specific colour in a scene to create a desired special effectn- Enhance existing colour or create subtle colour draman- Create a more balanced exposure in uneven lighting conditionsnnColorCore Technologynnn- Tiffen filters are manufactured using ColorCore technology, a closely guarded proprietary process that involves permanently laminating the filter material between two pieces of optical glass that are polished to tolerances of one ten-thousandth of an inch, then mounted in precision metal ringsn- The ColorCore process allows Tiffen to control the colour and density of their filters, as well as the characteristics of special effects filters, with precision far superior to typical mass-tinted filters, which typically exhibit colour and density variations.nnnSuperior Qualitynnn- Hollywood's biggest film studios trust Tiffen filters for their multi-million dollar productionsn- Superior quality and design make Tiffen the overwhelming choice of filmmakers, professional photographers, and even NASAn- Tiffen has also received an Emmy from the Academy of Television Arts and Sciences for engineering excellencennSpecificationsnn