- Reduces reflection on non-metallic surfaces and enhances colour saturation and image contrast ,- No vignetting (dark shading of picture corners) ,- For wide-angle and wide-angle zoom lenses, especially for fast AF lenses with integrated motor drive or front lens focus ,- Protects the lens against scratches, dust and fingerprints ,- Tempered glass ,- New optical glass of superior quality ,- Special filter with ultra flat rotary mount (4.5 mm) ,- HTMC coating: four layers of coating are vapour-deposited on each side which minimizes light reflections and optimizes light transmission ,- Very low weight , ,- Quality standard (glass): ProClass , ,Impact on the picture: ,- Puts contrast and depth in the picture, the sky gets blue, the clouds get white and the colours become clearer ,- According to the position of the filter, non-metallic reflections (water, plastic, glass, etc.) are removed ,- A shooting angle of 30-40° to the reflective surface will give the best effects - Front Thread: Yes ,- Coating: HTMC (8 x) ,- Filter Thread: 82 mm ,- Filter Type: Polarisation circular ,- Metal Mount: Black ,- Mount Thickness: 4,5 mm ,- Type of Glass: Crown Lens Glass 30 Years Warranty