49mm Digital Pro High-Resolution Filter Kit (UV,CPL,FLD) with Deluxe Filter Carry Case for Select Pentax Digital Cameras. UltraPro Deluxe Accessory Set Included Fully Compatible with the Following Models: Pentax 50-200mm WR, 50mm Macro, 100mm Macro, 21mm, 35mm, 40mm, 70mm Lenses. Bundle Includes: 3 Piece Filter Kit - High-Resolution filters are manufactured from top quality solid optics. Each individual filter is heat treated and coated to avoid any distortion UV Protective Filter: Prevents loss of sharpness and contrast by filtering out UV rays and Haze. Also protects your lens from scratches, scuffs and smudges CPL Circular Polarizer Filter: Polarizing filter increases color saturation, make skies bluer, grass greener-even eliminate surface reflections from glass and water - all with picture perfect results FLD Fluorescent Filter: Eliminates the greenish tint/cast which fluorescent lights add to photos