62mm Multi-Coated 3 Piece Filter Kit (UV-CPL-FLD) For Pentax 20-35mm f/4 AL Lens + MicroFiber Cleaning Cloth Fits all 62mm lenses Ideal for protecting your valuable lens from scratches and dust UV filter absorbs ultraviolet rays to produce crisp, clear photographs Circular Polarizing filter eliminates reflections from non-metallic surfaces, and increases contrast and color saturation FLD filter helps balance light in outdoor situations or where fluorescent lights are used