K&F Concept Nano-X True Color variable ND filter ND2–ND32 + CPL 2-in-1 67 mm K&F Concept

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Nano-X True Color variable ND filter ND2–ND32 + CPL 2-in-1 67 mm, changes the amount of light steplessly as you turn it. It is a favourite for filming on bright days, as it lets you keep a cinematic shutter and a wide aperture without blown highlights or swapping filters between takes.

• 28 anti-reflective layers
• The surface repels water and grease and resists scratches

Light under control with one turn

A variable ND replaces a whole set of fixed grey filters — turning the front ring changes how much light gets through, steplessly. While filming the shutter stays at 1/50 s even as the sun goes behind a cloud and comes back, with no need to stop the take or swap a filter.

The surface repels water and grease, so drops run off and fingerprints wipe away without smears; the coating also stands up to cleaning in the field. Two functions in one piece of glass: the variable ND cuts one to five stops and the polarising layer also takes the glare off water and glass. Both are built for faithful colour, so the image does not drift yellow the way cheap variable NDs do.

• Combined variable ND + CPL 67 mm — 1 pc
• Fabric pouch — 1 pc

• Filter type: Combined variable ND + CPL
• Series: Nano-X
• Thread size: 67 mm
• Glass: optical glass
• Coatings: 28
• Frame: aluminium alloy with end stops
• ND range: ND2 – ND32
• Stops: 1–5 stops
• Surface treatment: water-repellent, grease- and scratch-resistant