BlueTech 55MM Lens Filter Accessory Kit (UV, CPL, FLD) For Sony Alpha SLT, A33, A35, A37, A55, A57, A57M, A57K, A58, A58K, A65, A65V, A65VL, A77, A77, A77II, A99, A99V, A100, A200, A230, A290, A300, A330, A350, A380, A390, A450, A500, A560, A550, A580, A700, A850, A900 Digital SLR Cameras (Compatible 35mm f/1.8 Wide Angle, 50mm f/1.4, 85mm f/2.8, 100mm f/2.8, 55-200mm f/4-5.6 LENS) NOTE: This Kit is compatible with all 55mm lenses. Please Check your camera's lens thread size before ordering. CPL filters (Circular Polarizer) are great for removing unwanted reflections from non-metallic surfaces such as glass or water. Take richer scenic shots and notice improved clarity in distant objects by cutting through haze and increasing color saturation. This filter is mounted on a rotating frame allowing the user to determine the desired amount of reflection to be removed by simply rotating the filter. UV filters reduce haze and improve contrast by minimizing the amount of ultraviolet (UV) light. Especially useful in areas of high altitude or snow, eliminating the undesirable blue cast. FLD filters allow for shooting under fluorescent lighting. Bring warm natural lighting to rooms that would otherwise be washed out by unappealing fluorescent lights. Kit Includes: Filter Kit (Ultraviolet UV, Circular Polarizer CPL, Fluorescent FLD) + Carry Case