K&F CONCEPT VARIABLE ND2-400 HMC 55MM FILTER

K&F CONCEPT VARIABLE ND2-400 HMC 55MM FILTER

The K&F Concept Variable ND2–400 HMC 55mm Filter is a professional-grade variable neutral density filter engineered for photographers and filmmakers who demand complete creative control over exposure, motion, and depth of field in any lighting condition. Delivering a seamless 1–8 f-stop light reduction range, this ultra-slim ND filter functions like adjustable sunglasses for your lens—allowing you to slow shutter speeds for dramatic motion blur, widen apertures for cinematic bokeh, and maintain perfect exposure even in harsh daylight scenarios. Crafted from high-precision Japanese optical glass with double-sided polishing and an 18-layer multi-coating system, the ND2–400 ensures exceptional image clarity with reduced reflections, minimal color shift, and maximum light transmission. Its durable aircraft-grade aluminium frame, smooth rotation mechanism, waterproof/scratch-resistant coatings, and anti-vignetting design make it an essential all-rounder for landscapes, portraits, long exposures, travel shooting, and professional video. Lightweight, precise, and incredibly versatile, this filter eliminates the need for multiple fixed-ND filters—delivering unmatched performance in one compact tool.

Key Features

• 1–8 f-Stop Variable Light Reduction
  Easily rotate the filter to control exposure from ND2 to ND400, enabling long exposures, motion blur, shallow depth of field, and balanced daylight shooting.

• Professional Exposure Control for Photo & Video
  Extend shutter speeds for silky waterfalls, streaking clouds, soft water movement, and urban light trails—while maintaining cinematic shutter rules for video production.

• Premium Japanese Optical Glass
  Built with high-precision, double-polished Japanese optics that deliver ultra-sharp imaging, faithful color reproduction, and high-definition performance up to 8K resolution.

• 18-Layer Multi-Coated Protection
  Advanced coatings reduce reflections, glare, and ghosting while enhancing light transmittance for clean, contrast-rich images in challenging light.

• Waterproof, Scratch-Resistant Nano Coating
  Double-sided blue nano-layer repels water, oil, dust, and fingerprints while protecting against scratches—perfect for outdoor and travel photography.

• Ultra-Slim 3mm Aircraft-Grade Aluminium Frame
  Lightweight, durable, and engineered to minimize vignetting on wide-angle lenses; features textured edges for secure grip and smooth rotation.

• Stepless Rotation with Calibration Marks
  Fluid turning action allows precise exposure adjustment, supported by dot and arrow reference markings for consistent, repeatable results.

• Replaces Multiple ND Filters
  One variable ND covers the functionality of several fixed ND filters, reducing the amount of gear you carry and eliminating time-consuming filter swaps.

• Ideal for Cinematic Shooting
  Provides manual exposure control similar to an aperture ring, ensuring stable shutter speeds and clean motion rendering for filmmakers.

• Oversized Optical Surface for Anti-Vignetting
  Larger-than-thread filter glass ensures even exposure across the frame, maintaining edge-to-edge clarity even on wide lenses.

• Secure Double-Threaded Design
  Allows stacking with additional filters, such as CPL or UV, enabling complete creative freedom and flexible shooting setups.

• Protective Hard Carry Case Included
  Prevents scratches, dust, and impact damage while transporting or storing the filter—keeping your optics safe and ready for action.

In the box:
1 x K&F Slim Variable ND filter ND2-400
1 x Plastic Carrying Case