The Sigma 105mm UV Multi-Coated Digital Glass filter is a wise investment. It helps protect your valuable investment from dust, moisture and scratches, which can lead to costly repairs.
Multicoated to minimize reflection at the filter surfaces which reduces flare and ghosting.
Excellent choice for compatibility with today's digital cameras and lenses
Sigma filters provide additional benefits of correction for Ultraviolet(UV) light which can register on film and videotape as a bluish cast and can obscure distant details
If desired they can be left on the lens at all times for protection
Ultraviolet filters allow you to correct for the UV effect to varying degrees