Schneider’s neutral density filters attenuate light by absorption. We are able to offer a wide range of filters with different attenuation levels by carefully controlling the thickness of the filter material. The transmission variations over the visible wavelength range are very small to avoid effects on color balance.
In imaging applications ND filters are used to adjust the intensity to an appropriate level to avoid camera overexposure. If you use a filter instead of stopping down the iris, you will not affect other imaging parameters such as depth of field and diffraction limitations
Set contains 4x5.65 filters (.3, .6, .9, 1.2, 1.5, 1.8)