- - 【Compatible with Various Matte Box】K&F Concept ND4 (2 Stops) Square ND Filter is of the standard size for matte box system and widely compatible with 4 X 5.65" filter holders and matte boxes. Compatible with Tilta, SmallRig, and other brands, it is ideal for professional cinema applications.
- - 【Control Exposure with ND4 Filter】K&F Concept Matte Box ND4 Filter enables 2 stops of light reduction, helping you control the shutter speed and use a larger aperture in bright environments. Achieve the perfect exposure every time with ease.