The hue-neutral CPL filters, with the quality German Schott optical glass, are hardly breakable. Multi-coating Eliminates 99.8% light reflection. The quality of being water and dirt proof ensures constant cleanliness of lens and lowers maintenance costs. Scratches are prevented with the quality coating. The filters do not form bubbles or break on their edges even in extreme weather. Ordinary CPL filters may be stuck in low temperatures or lose their damping in high temperatures. The CPL filters can still perform well within -40°C to 60°C. Hoods and lens cap can be placed in front of the lens.