The NiSi Nir-ND1.8CPL 67mm Circular Polarizer Filter with 6-Stop Solid Neutral Density 1.8 Filter is an innovative addition to our extensive range of camera accessories. This unique, threaded filter series is designed to enhance your photography by combining the benefits of a circular polarizer with a 6-stop reduction in overall light. This dual-purpose filter works to balance colors in your images, providing richer, more vibrant results. It also increases the depth-of-field, allowing for sharper focus on your subject while creating a beautifully blurred background. In addition, the 6-stop light reduction feature of this 67mm circular polarizer filter is perfect for lengthening exposures. This is particularly useful in landscape photography, where it can help to create a smooth, dreamy effect in moving elements such as water or clouds. The NiSi Nir-ND1.