The Tiffen Ultra 127mm circular polarising filter is a remarkable filter designed to bring significantly more "punch" to your images. If a traditional polariser doesn't give you enough "pep", the "Ultra" polariser offers you a bit more. It will further enhance your blue skies - making the difference between a good photo and an exceptional image.nnReflected light rays become polarised. Polarising filters are used to select the light rays that enter your camera lens. They can eliminate unwanted reflections on non-metallic surfaces such as water or glass and also saturate colours, providing better contrast. The effect can be observed through the viewfinder and modified by rotating the filter. The filter factor varies according to the rotation of the filter and its orientation relative to the sun.nnWater White glass is characterised by high transmission quality. Generally, it transmits 98-99% of light. It also has anti-glare and anti-reflective properties that make it useful in a wide range of applications, including in the film industry, shop windows and art exhibitions. The glass is virtually flawless and is becoming increasingly widespread in digital equipment.nnnn- Your deep blue sky will become even "more blue"nn- A highly efficient designnn- Made from Water White glass