The Alpha MC UV absorbs ultraviolet rays which often make outdoor photographs hazy and less sharp. The Alpha MC UV is a good multi-purpose filter that can be left on the lens at all times for protection. The filter offers 93.7% light transmission.
The filter has four layers of Hoya multi-coating (HMC) on the glass to reduce the chance of reflections or flare that could ruin a good shot. The Alpha UV has a high quality durable aluminum frame that can stand up to years of use.