K&F Concept Nano-C HMC CPL Circular Polarizer Filter 49mm

The K&F Concept Nano-C HMC CPL Circular Polarizer Filter is a premium optical accessory designed for photographers seeking to enhance image quality. Crafted from Japanese AGC optical glass with 28-layer Nano-C multi-coating, this filter reduces reflections from non-metallic surfaces, increases color saturation and contrast, and provides waterproof, oil-proof, scratch-resistant, and anti-static protection. The ultra-slim aviation aluminum alloy frame (5.2mm thick) ensures no vignetting on wide-angle lenses, and the front thread allows stacking of additional filters or lens caps. Ideal for landscape, travel, and outdoor photography, this filter delivers over 99.6% light transmission with a 1-2 stop light reduction.

Advantages

High-quality Japanese optical glass ensures sharp, clear images. The Nano-C multi-coating repels water, oil, dust, and scratches, making it easy to clean and maintain. The ultra-slim frame prevents vignetting, and the front thread adds versatility. The filter effectively eliminates reflections from water, glass, and foliage while deepening blue skies and enhancing greenery.

Suitable for

• Landscape photographers wanting richer colors and contrast
• Travel photographers needing a durable, compact filter
• Outdoor enthusiasts shooting water, snow, or sky scenes
• Any photographer using lenses with a 49mm filter thread

Key specifications

• Filter Type: Circular Polarizer (CPL)
• Filter Diameter: 49mm
• Optical Material: Japanese AGC Optical Glass
• Coating: Nano-C Multi-Coating (HMC), 28 layers
• Frame Material: Aviation Aluminum Alloy, Ultra-slim
• Frame Thickness: 5.2mm
• Waterproof, Oil-proof, Scratch-resistant, Anti-static
• Light Transmission: >99.6%
• Light Reduction: 1-2 Stops
• Front Thread: Yes

Recommendations

For best results, use this filter on lenses with a 49mm filter thread. Combine with a lens cap or other filters via the front thread. Clean with a microfiber cloth when needed. This filter is an excellent choice for enhancing outdoor photography without compromising image quality.