"The Manfrotto MFESSUV Essential UV Filter is the time-honored, multi-functional filter, it blocks UV light from entering the lens and therefore reducing blurring, haziness and blue casting. At the same time, it is a very useful tools to add protection to the lens against dust, moisture, scratches and can permanently remain on the lens. The Manfrotto Essential UV Filter 52mm is water repellent, includes 8 layers of coating which provide an anti-reflective surface and allows 99% light transmission. Multi Coating Manfrotto filters have been developed with the highest level of precision. The elaborate multi-coating process effectively minimizes reflections and maximizes the light transmission, hence delivering remarkable optical quality. The anti-reflectiveness of filters increases in parallel to the increase in the number of layers of coating. Additionally, as a result of the multi-coated layers, Manfrotto filters ensure a superior level of protection against dust, moisture and scratches."