- Perfect lens protector: protects the front lens of the camera lens from scratches, dust and fingerprints ,- Transparent ,- HTMC coating: four layers on each side, for high light transmission ,- Quality standard (glass): high-quality lens glass ,- Specially designed for DSLR, system and bridge camers with wide-angle, wide-angle zoom and travel zoom lenses ,- Flat metal mount (only 3 mm), therefore no vignetting (dark shading of picture corners) ,- Nevertheless with a front thread for lens caps, other filters or lens hoods , ,Impact on the pictures: ,- Clear, sharp photos - Front Thread: Yes ,- Coating: HTMC (8 x) ,- Filter Thread: 52 mm ,- Metal Mount: Black ,- Mount Thickness: 3 mm ,- Type of Glass: High-Grade Lens Glass 10 Years Warranty