K&F Concept ND8 + ND64 ND Filter Kit 4 × 5.65″ for Matte Boxes K&F Concept

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ND8 + ND64 ND Filter Kit 4 × 5.65″ for Matte Boxes. The set saves hunting for single pieces: the filters match in size and mounting and take little room in the bag, so they are at hand whenever the light changes.

• 28 anti-reflective layers, reflectance 0.2 %
• The surface repels water and grease and resists scratches

Standard size for matte boxes

The 4″ × 5.65″ size is the cinema standard, so the filter fits common matte boxes and filter trays. It is not screwed onto the lens but slid in front of it, which allows several filters to be stacked and swapped without touching the lens.

The set brings together the filters most often used with this kit, so they need not be bought one at a time and all mount the same way. Exactly what is included is listed below. The filters can be used individually, depending on what the scene calls for. The glass carries 28 anti-reflective layers and reflects only 0.2 % of the light, so no ghosting or veiling appears against the light.

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. The ND8 takes three stops and the ND64 six; slid in one behind the other they give nine. Two fixed densities thus cover an overcast sky, harsh sun and a long exposure in daylight.

• ND8 neutral density filter — 1 pc
• ND64 neutral density filter — 1 pc
• Leather filter pouch — 2 pcs

• Filter type: Filter set
• Series: Matte Box Cinema
• Glass: Japanese AGC optical glass, titanium coating
• Coatings: 28
• Reflectance: 0.2 %
• Stops: 3 and 6 stops
• Density: ND8 + ND64
• Surface treatment: water-repellent, grease- and scratch-resistant
• Dimensions: 4″ × 5.65″
• Glass thickness: 4 mm
• Note: Fits 4″ × 5.65″ matte boxes and filter holders, among them Tilta and SmallRig.