Sigma UV Filter blocks the invisible UV component of light from the sky
UV Filters are ideal for photography in high altitudes (in the mountains), by the sea and in regions with very clean air
Pictures gain brilliance
Protection for the front element of your lens
UV filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The multi-coated reduce reflection and is designed to be used with multi-coated lenses to protect and reduce excess UV. Multi coated UV filter designed for outdoor photo, portrait photo and snap shot photo. UV filter has a filter factor of zero and requires no change in exposure.