The Cokin Round Nuances NDX 2-400 filter 67mm of mineral glass is made with innovative filter manufacturing technology. A completely new coating process was developed to ensure uniform colours. A nano-metallic alloy is applied to both sides of the filter which is made of high-strength tempered Schott glass. This type of glass is known for its high light transmission and low reflection. The result is a beautiful neutrality, completely free of infrared pollution.
Why a grey filter?
This grey filter blocks 1 to 7 stops of light over the entire image. This makes it possible to work with a more open aperture or longer shutter speeds. This is ideal in a high light environment and when you want to use certain settings in a setting where this is not possible with the existing light. It also gives you more control over depth of field.
Why a variable grey scale filter?
Turn the outer ring of the filter to set the range from ND2 to ND400. So there is no need to change filters to achieve different effects. With this filter it is possible to steplessly control the light while filming at a constant aperture. Think of turning the camera towards the light or away from the light source. During your photography sessions where you already have enough accessories with you, you now only need to take one filter and still have total control of the light and creativity!