Zeiss 86mm Carl T* Ultraviolet Filter Zeiss 86mm Carl T* Ultraviolet Filter - Plastic Storage Case - Zeiss 2 Year Limited Warranty Absorbs UV light and reduces bluish cast of daylight Clear filter provides no additional coloration or contrast, allowing you to pair this filter with others General protection filter reduces dust, moisture, and scratches from reaching lens elements T* anti-reflective helps to reduce surface reflections in order to produce greater light transmission for a higher quality image