Sigma's weather-resistant (WR) ultra-violet (UV) filters prevent the bluish tone that generates when the weather is fine, by absorbing ultraviolet rays. It is effective in most situations, such as landscape, portrait and general photography on a sunny day. It is also an ideal filter for regular use as it is completely colourless so does not affect colour reproduction. With excellent water and oil repellent functions, the filter surface repels water drops and provides resistance to fingerprints. Even if they appear on the surface they can be easily removed.
The Sigma 105mm WR UV Filter would be best suited for photographers who value sharpness and clarity at all viewing angles, especially during shooting under direct sunlight or in instances where a UV filter is desired for its added impact and aesthetic appeal.
