K&F Concept 37MM CPL Filter

The K&F Concept 37mm True Color CPL Filter enhances color, contrast, and clarity by removing reflections from non-metallic surfaces. Built with Japanese AGC optical glass and 28-layer nano-coating, it delivers UHD image quality, true-to-life color, and excellent durability in a compact CNC-machined frame.

The K&F Concept 37mm True Color CPL Filter is designed to elevate your outdoor and landscape photography with superior reflection control and accurate color reproduction. Using advanced titanium coating technology, this CPL eliminates the common partial-yellow color shift found in traditional polarizers, ensuring your images remain true to life.

Crafted from premium Japanese AGC optical glass, the filter features double-sided polishing for ultra-high-definition clarity without softness or distortion. Its 28-layer nano-coating provides water resistance, scratch resistance, and 45% light transmittance while removing up to 99.9% of polarized light, ideal for enhancing skies, reducing glare from water and glass, and boosting overall contrast.

The CNC-machined trapezoidal frame increases grip for smooth rotation and easy installation or removal, while maintaining a lightweight, ultra-thin structure to avoid vignetting on wide-angle lenses.

Key Features

• Removes reflections from water, glass, and other non-metallic surfaces
• Enhances sky contrast and overall color saturation
• Titanium coating prevents partial-yellow color shift
• Made with premium Japanese AGC optical glass
• 28-layer double-sided nano-coating for UHD clarity
• Waterproof, scratch-resistant, and high transmittance
• Removes 99.9% of polarized light
• CNC trapezoidal frame for improved grip and precise rotation

• 1 K&F Concept 37mm True Color CPL Filter

• Filter Type Circular Polarizer (CPL)
• Thread Size 37mm
• Coating 28-layer nano-coating (double-sided)
• Material Japanese AGC optical glass + aluminum alloy frame
• Light Transmission 45%
• Color Accuracy True color, no partial-yellow