Optimise your photography with the Hoya 52mm HD3 Circular Polariser, engineered for modern high-resolution imaging. This premium filter reduces reflections and glare from non-metallic surfaces such as water and glass, whilst enhancing colour saturation and contrast in skies and foliage. The HD3 features a patented ultra-hard nano-coating with 16 layers of anti-reflective treatment, making it 200% harder than the previous HD2 generation, whilst providing over 92% light transmission. Re-certified for 100MP+ camera sensors without loss of resolution, the optical-thin HRT (high rate transmission) polarising film delivers faster autofocus and improved viewfinder brightness. The lightweight, low-profile aircraft-grade aluminium frame with knurled edges maintains perfect parallel alignment to your sensor for maximum sharpness and zero distortion, whilst the waterproof and stain-resistant nano-coating makes cleaning effortless.