The Hoya HMC UV (C)Filter is a wise initial investment. It helps protect your valuable investment from dust, moisture and scratches, which can lead to costly repairs. The “C” on the filter ring designates Hoya’s thinner design for this filter. This filter has its UV properties in the multi-coating. The result is an average light transmission of over 97% giving sharp contrast and well balanced color. Hoya HMC filters are recommended for enhancing the performance of today’s multicoated digital lenses.