K&F Concept Variable ND Filter ND8-ND2000 37mm

The K&F Concept Variable ND Filter ND8-ND2000 is a high-quality variable neutral density filter designed for photographers and videographers. With a density range of ND8 to ND2000 (3 to 11 stops), it allows precise exposure control in bright conditions, enabling creative effects like long exposures and shallow depth of field. The 37mm diameter fits lenses with 37mm filter threads.

Advantages

This filter offers stepless adjustment from ND8 to ND2000, eliminating the need to carry multiple fixed ND filters. The ultra-slim CNC-machined aviation aluminum alloy frame minimizes vignetting, while 28 layers of multi-coating provide waterproof, scratch-resistant, anti-reflection, and oil-proof properties. Japanese AGC optical glass ensures high definition and color neutrality with minimal color shift. The design also reduces X-pattern artifacts at high ND settings.

Suitable for

• Landscape photography with long exposures
• Videography requiring smooth motion blur
• Portrait photography with wide apertures in bright light
• Any situation needing exposure control without changing aperture or shutter speed

Key specifications

• Filter Type: Variable Neutral Density (VND)
• ND Density Range: ND8 to ND2000
• F-Stop Reduction: 3 to 11 Stops
• Filter Diameter: 37mm
• Optical Material: Japanese AGC Optical Glass
• Coatings: 28 Layers (Waterproof, Scratch-Resistant, Anti-Reflection, Oil-Proof)
• Frame Material: Aviation Aluminum Alloy
• Frame Type: Ultra-Slim CNC Machined
• Front Thread Size: 37mm
• Color Neutrality: High
• Rotation Mechanism: Smooth, Stepless Adjustment

Recommendations

For best results, use with a lens hood to prevent flare. The filter is compatible with lenses featuring a 37mm filter thread. Ensure the filter is securely attached to avoid accidental rotation during use.