From the ManufacturerThe Tiffen 62mm Digital Enhancing lens filter kit combines four essential digital imaging lens filters to cover just about all shooting situations most photographers will encounter, from portraits to foliage to shooting through glass or glaring sunlight.Film and video are more sensitive to UV light than our eyes are. This often shows up as a bluish cast in images, especially shots from high altitudes and long distances, praticularly over water. The ultraviolet protector provides basic reduction of UV light.The Tiffen digital enhancing filter makes red, rust browns, and oranges "pop," with minial effect on other colors. Perfect for fall foliage, earthtone rock formations, architecture, woodwork, faded rustic barns, and any photos where red, brown, and orange subjects should be enriched or appear more intense.The circular polarizer has the same effect as a polarizer and is used on cameras with beam splitting metering systems commonly found on auto focus SLRs. Use the Tiffen polarizer with the enhancing filter for more dramatic effects.The 812 warming filter, a Tiffen exclusive, improves skin tones and is ideal for portraits taken on a cloudy day or outdoor, in shade on a sunny day.