Today'shigh quality lenses have precision front lens elementsthat can be easilyscratched or damaged during normal use and cleaning. A UV filter simply screwsinto the filter threads on the front of your lens and remains there permanentlyfor protection and improved colorrendition.Why should I buy a VivitarUV filter when others might be less expensive?When you have taken thetime, effort and expense to obtain the higher quality images that a DSLR canprovide, don’t compromise your results with “Protector”, “No Name”, “HighDefinition”, “Hi Resolution” filters that are available at prices that seemtoo good to be true. The low quality components,construction and quality control of a “bargain priced” filter can degradesharpness, create distortion and lower your overall image quality. Key Features: Fordigital, video and photoProvidemore accurate colorMay bekept on your lens at all timesMore thanjust a “Protector” it absorbs UV light to reduce excessive blue and hazeFrontthreads allow attachment of other filters and accessories Protectslens from dust, moisture, fingerprints, scratches and impact For over 70 years Vivitar has been recognized as a manufacturer of quality optics and photo accessories   What is thedifference between a UV filter and aProtector?A UV filternot only offers protection but is capable of removing enough Ultra Violet lightto reduce excessive blue and haze to clearly improve your images. “Protectors” offer protection but no UV filtration capability and its opticalquality is no better than plain window glass. A UV filter will filter outunwanted UV light and prevent a UV “fogging/haze” effect" which can resultin inaccurate color and lower the apparent sharpness. When shooting outsidewithout a UV filter, white areas often will show a bluish tint and skin tonescan appear less natural and "cool" looking. Furthermore, when youshoot at distances, there is more UV light between you and the subject thanwhen close. This can introduce a “UV haze effect” and result in less thanoptimum image sharpness. When shouldI use a UV filter?The most recommended offilters, a UV can be kept on a lens at all times inside or outside, daylight orflash, black-and-white or color, telephoto, wide angle or zoom lens, film ordigital, still or video photography… no matter what your camera or lens type. Alens protected by a UV filter can often survive intact when the filter absorbsthe trauma of the impact. It also makes it easier and less expensive to have to cleanor replace a badly scratched or damaged filter than your camera’s lens.