K&F Concept Filtro ND Variable Fader ND2-400 Nano-C HMC 55mm

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 a density range of ND2 to ND400 (1 to 9 stops), this filter allows you to achieve slower shutter speeds and wider apertures even in bright conditions, perfect for long exposure photography and shallow depth of field effects.

Advantages

This variable ND filter offers stepless adjustment from ND2 to ND400, eliminating the need to carry multiple fixed ND filters. The 28-layer Nano-C multi-coating ensures excellent color neutrality, low color shift, and high definition. The ultra-slim rotating frame is made from aviation aluminum alloy, providing durability while minimizing vignetting. The anti-X cross design prevents the cross-shaped artifact that can occur at maximum density on some variable ND filters.

Suitable for

• Landscape photographers wanting silky water or cloud motion
• Portrait photographers needing wide apertures in bright light
• Videographers requiring precise exposure control
• Any photographer using lenses with a 55mm filter thread

Key specifications

• Filter Type: Variable Neutral Density (ND)
• ND Density Range: ND2 - ND400 (1 to 9 stops)
• Filter Diameter: 55 mm
• Coating: 28-Layer Nano-C Multi-Coating
• Glass Material: Japanese AGC Optical Glass
• Frame Material: Aviation Aluminum Alloy
• Filter Thickness: 8 mm
• Front Thread: 55 mm (for lens cap)
• Special Feature: Anti-X Cross Design

Recommendations

For best results, use a tripod and remote shutter release when shooting long exposures. The filter is compatible with lenses that have a 55mm front filter thread. Ensure the filter is securely attached and rotate smoothly to adjust density.