CPL Circular Polarizer Glare Shine Polarizing Filter for Nikon AF NIKKOR 50mm f/1.2 f/1.4 f/1.4D f/1.8D Lens CPL Circular Polarizer Glare Shine Polarizing Filter for Nikon AF NIKKOR 50mm f/1.2 f/1.4 f/1.4D f/1.8D Lens