UV Protective Filter: Prevents loss of sharpness and contrast by filtering out UV rays and Haze; Protects Lens from scratches, scuffs and smudges. .
CPL Circular Polarizer Filter: Increases color and contrast by removing unwanted reflections from non-metallic surfaces such as water or glass; Reduce glare and reflections significantly from non-metallic surfaces
Macro Close-Up Filter: decreases the minimum focusing distance of virtually any lens to "Macro Lens".
Star filter create points of light, like "stars," streaking outward from a central light source.