Ready to improve creative exposure and image control? The Neewer ND4 Camera Lens Accessory with Cpl, ND4 gives you a straightforward way to do it. Control the image at capture time for a more intentional final look. Designed around real-world creative exposure and image control, the Neewer ND4 Camera Lens Accessory with Cpl, ND4 keeps setup and adjustments approachable. Useful listed details include Cpl and ND4. Its aluminum alloy / optical glass construction gives the setup a practical, gear-ready feel.