The VARI Orange & Blue CPL allows you to enhance orange reflections (sunset) or blue tones to many shooting scenes, it's a “secret weapon” used by many outdoor and landscape professional photographers to apply an authentic, on-camera, “hue shift” to the scene. As you rotate the NiSi VARI Orange & Blue C-Polarizer, the colors in the scene will change from blue to orange and, of course, will cut the reflected light as a normal polarizer will do. HD technology, unsurpassed quality. Each piece of glass is strictly controlled on the filter surface, flatness and parallelism are at the most ideal level. We test each piece with a collimator, suitable for all types of high-definition lens shooting requirements. Multi-layer coating and stable color coating. Each piece of glass has a double-sided multi-layer coating, reducing the impact of reflection on the image. High stability of the color film, will not fade on the corners. Slim and smooth frame, for an easy handling. Frame and the outer circumference are CNC machinery-made by the high-speed CNC Milling Machine, the surface with optical-grade environmental oxidation process has a strong weather resistance, grease, and chemical resistance.