K&F Concept Hybrid Filter 2-in-1 CPL + Variable ND2-ND32 37mm / KF01.2608

The K&F Concept Hybrid Filter 2-in-1 combines a Circular Polarizer (CPL) and a Variable Neutral Density (ND) filter in a single ultra-slim frame. Designed for lenses with a 37mm filter thread, this innovative filter allows photographers to control exposure, reduce reflections, and enhance color saturation without swapping filters. Ideal for landscape, travel, and outdoor photography.

Advantages

This 2-in-1 filter saves time and space by eliminating the need to carry separate CPL and ND filters. The variable ND density from ND2 to ND32 (1-5 stops) provides flexible exposure control in changing light conditions. The CPL effect reduces glare and reflections from water, glass, and foliage, while boosting color contrast. The aerospace-grade aluminum alloy frame is lightweight yet durable, and the multi-coated optical glass ensures high-definition clarity with water, oil, and scratch resistance.

Suitable for

• Landscape photography
• Travel and outdoor shooting
• Long exposure and motion blur effects
• Reducing reflections in bright environments

Key specifications

• Filter Type: Hybrid (Circular Polarizer + Variable Neutral Density)
• Filter Diameter: 37mm
• ND Density Range: ND2-ND32 (1-5 stops)
• Frame Material: Aerospace-grade Aluminum Alloy
• Glass Material: High-definition Optical Glass
• Coatings: Multi-coated, Waterproof, Oil-proof, Scratch-resistant
• Frame Profile: Ultra-slim
• Optical Clarity: High-definition
• Adjustability: Smooth rotation for CPL and ND adjustment
• Compatibility: Lenses with 37mm filter thread

Recommendations

For best results, use with a lens hood to minimize flare. The filter can be stacked with other filters if needed, but avoid over-tightening. Store in a protective case when not in use.