K&F Concept Filtro ND Variable Fader ND2-400 Nano-C HMC 77 mm

The K&F Concept Nano-C HMC Fader ND2-400 is a high-quality variable neutral density filter designed for photographers seeking creative control over exposure. With an adjustable ND range from ND2 to ND400 (1 to 9 f-stops), this filter enables long exposure effects, motion blur, and shallow depth of field even in bright conditions. The 77 mm diameter fits a wide range of lenses.

Advantages

Variable ND filter eliminates the need to carry multiple fixed ND filters. The 28-layer nano multi-coating reduces reflections, flare, and ghosting while providing water, oil, scratch, and dust resistance. The ultra-slim 7.4 mm aviation aluminum alloy frame minimizes vignetting and is compatible with wide-angle lenses. Special optical design eliminates the 'X' cross vignetting common in variable ND filters.

Suitable for

• Landscape photography with silky water or cloud motion
• Architectural photography to blur moving people or traffic
• Portrait photography with wide apertures in bright light
• Video recording to maintain shutter speed at 180° rule

Key specifications

• Filter Type: Variable Neutral Density (ND)
• ND Range: ND2 - ND400 (1-9 stops)
• Filter Diameter: 77 mm
• Optical Material: Japanese AGC Optical Glass
• Coating: 28-Layer Nano Multi-Coating (HMC)
• Frame Material: Aviation Aluminum Alloy
• Frame Thickness: 7.4 mm (Ultra-slim)
• Optical Density Range: 0.3 - 2.7
• Special Feature: Eliminates 'X' cross vignetting

Recommendations

For best results, use a sturdy tripod and remote shutter release. The filter is ideal for both professional and enthusiast photographers. Ensure your lens has a 77 mm filter thread.