TheSSD 49mm UV Haze Filter is a general use, clear filter that helps to absorb ultraviolet light. Noadditional coloration or contrast is provided, allowing you to pair this filter with others.The UV filter is also useful as a general protective filter to leave on lenses at all times. Filters help toreduce dust and moisture from reaching your lens element and provide additional protection in caseof drops or situations where scratching could occur.SSD filters are multi-coated for reducing flare, ghosting, and reflections on the filter surface. As aresult, over 97% light transmission is possible, providing you with additional contrast and high colorfidelity.The UV filters are constructed from high quality, heat-resistant, high-transparency optical glass anda precision milled low-profile aluminum frame. Absorbs UV light, which can cause outdoor photos to appear hazy and indistinct Clear filter provides no additional coloration or contrast, allowing you to pair this filter with others. Works as general protection filter to reduce dust, moisture, and scratches from reaching lens elements. Multi-coating help to reduce flare, ghosting, and reflections on the filter surface for greater contrast and color fidelity. Greater than 97% light transmission is possible, providing additional contrast and high color fidelity. Crafted from high quality, heat-resistant, high-transparency optical glass and a precision milled low-profile aluminum frame.