High Quality Optical Performance Made from German imported optical glass, this lens filter kit delivers sharp, clear images and professional results for all your imaging needs. Adjustable CPL and NDPL Filters The included adjustable CPL and NDPL filters let you rotate the black filter ring to set your polarization and ND strength, providing precise creative control over each shot. Improved Color Accuracy Multi-layer coating ensures high transparency and brightness, accurately restoring real colors and enhancing overall image quality. Protection from Elements Waterproof, oil resistant and scratch resistant. These filters shield your lenses from environmental influences, offering durability and reliability. Use scenarios - Landscape photography: deepen the blue sky, boost contrast, and reduce glare from clouds or water. - Outdoor scenes with reflections: control reflections on glass, water, or shiny surfaces for cleaner detail. - Long exposure or dynamic scenes: use NDPL to balance exposure while managing glare on reflective subjects.