Camera accessory that controls light intake for longer exposures and smoother video while keeping colours true. Photographers and filmmakers gain cleaner, glare-free results and greater creative control with less fuss. Is the K&F CONCEPT Variable ND Filter the right upgrade for landscape and video work?
⚡ At a Glance
- • Image Quality: High sharpness and balanced colour with reduced surface reflections thanks to professional HD optical glass and MRC coating
- • Best for: Photographers and videographers who shoot long exposures, bright scenes and wide-angle footage
- • Not ideal for: Shoppers who have not confirmed their lens thread size before buying
Made from professional HD optical glass with a double-sided NANOTEC coating to preserve sharpness and repel marks. Ultra slim rim and aviation aluminium frame reduce vignetting while improving durability.
Clean wide-angle images – thanks to no 'X' cross technology
Manufacturer states the variable ND construction uses updated engineering to avoid the black 'X' artefact that sometimes appears with wide-angle lenses and variable neutral density filters.
Reliable wide-angle shooting without the distracting cross pattern, making long exposures and ND-driven video more usable straight from the camera.
Preserved sharpness and colour – with HD optical glass and 28-layer MRC coating
Made from professional optical glass rather than resin, with a multi-layer MRC (28-layer) Nano coating that reduces surface reflection and balances incoming light to protect image fidelity.
Sharper images and truer colours under bright conditions, so detail and tonal consistency remain during long exposures and heavy light reduction.
Wide-angle friendly profile – with an ultra slim rim and aviation aluminium frame
Ultra slim rim design reduces the risk of vignetting on wide-angle lenses, while an aviation-grade aluminium frame increases toughness and resists clogging during frequent use.
Fits more lenses without darkened corners and stands up to field use, a practical choice for landscape shooters and on-location videographers.
✨ The 4 Key Reasons for K&F CONCEPT Variable ND Filter
- Double-sided NANOTEC Coating – Reduces reflections and repels fingerprints during shoots
- HD Optical Glass – Preserves image sharpness and reduces glare in bright light
- Smooth Adjustable Fader – Enables precise exposure control for long exposures and video
- Waterproof, Scratch-Resistant Finish – Keeps the filter usable in damp or dusty environments safely
📋 Technical Details at a Glance
- Filter Type: Variable ND (adjustable fader)
- Density Range: ND2 to ND32
- Diameter: 82mm
- Optical Material: Professional HD optical glass (not optical resin)
- Coating: Double-sided NANOTEC multi-layer MRC (28-layer)
❓ Frequently Asked Questions
Q: Will the filter cause the black "X" pattern on images?
A: Manufacturer information states the design removes the black "X" cross that can appear with wide-angle lenses when using variable ND filters, so users should see fewer such artefacts.
Q: What lens thread size will fit this filter?
A: Product information instructs buyers to verify their lens thread size, which is usually marked with an Ø symbol on the lens barrel or cap; always check the camera lens before purchasing.
Q: Is the filter durable and easy to clean?
A: Double-sided NANOTEC coating makes the surface waterproof, scratch-resistant and resistant to oil and fingerprints, while the aviation-grade aluminium frame adds toughness.
🏆 Our Verdict
Suitable for landscape photographers and videographers who need controllable light reduction without compromising sharpness, especially with wide-angle lenses. The combination of HD optical glass, a 28-layer MRC Nano coating and an ultra slim aluminium frame helps prevent the common 'X' artefact while preserving detail. Long-term value comes from improved image consistency and durable construction, making it a practical upgrade for frequent shooters.
