K&F Concept Nano-D variable ND filter ND3–ND1000 52 mm K&F Concept

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Nano-D variable ND filter ND3–ND1000 52 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.

• 24 anti-reflective layers
• Screws onto a lens with a 52 mm thread.
• 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.

• Variable ND filter 52 mm — 1 pc
• Plastic case — 1 pc

• Filter type: Variable ND filter
• Series: Nano-D
• Thread size: 52 mm
• Glass: Japanese optical glass
• Coatings: 24
• Frame: aluminium alloy, CNC non-slip pattern
• Frame thickness: 7.4 mm
• ND range: ND3 – ND1000
• Stops: 1.5–10 stops
• Surface treatment: water-repellent, grease- and scratch-resistant