K&F ND8 (3 Stops) Square ND Filter, 4"x5.65" Neutral Density Filter SmallRig/Tilta Compatible

Matte Box Cinema — neutral density filter, takes light away so you can lengthen the exposure or open the aperture.

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

A neutral density filter takes light away without touching the colours. In daylight it lets you shoot wide open with a blurred background, film at 1/50 s by the cine rule, or lengthen the exposure until water melts into mist and people vanish from the frame.

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 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.