Freewell Circular Polarizing Filter CPL for OSMO NANOFreewell CPL Circular Polarizing Filter for OSMO NANO The CPL filter from Freewell effectively eliminates unwanted light reflections that often appear on glass, water, or shiny surfaces. This makes the image clearer and gives DJI Osmo Nano recordings greater clarity and a professional look. Glare reduction allows you to capture more detail, even in difficult lighting conditions where light falls at an angle or reflects off various objects. Natural