These filters offer both amateur and professional photographers HOYA's famous quality at reasonable prices. They have multi coatings applied to both surfaces to suppress reflection and increase light transmission.HOYA's UV IR Cut is a specialized filter that has the ability to cut out both UV rays below 390nm and IR rays above 700mn resulting in just the light rays in the visible spectrum passing through the filter and into the camera. This is important because CCD and CMOS sensors are extremely susceptible to UV and IR rays just outside the visible spectrum which have a very negative impact on image quality.The result is a sharper image with more depth, finer, richer colour graduations and a reduction of the effects of atmospheric haze to an even greater degree than a standard UV filter In addition, the filter is multi-coated, which greatly reduces lens flare and ghosting, and the slim frame helps avoid vignetting on super wide angle lenses. And of course, this filter will protect your lens surface from dust, moisture and other contaminants.