Sigma 46mm wr uv filter
Sigmas 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