Schneider Neutral Density (ND) Filters
ND filters reduce evenly the transmittance of light over the entire VIS spectrum. They decrease the brightness of an image without changing the depth of field (DoF). They attenuate light by absorbing a part of the energy of the VIS wavelength, without influence on the color balance. ND filters are used to control the intensity of light going through an optical system to avoid overexposure, blooming on imaging sensors and prevent damages on light sensitive measuring sensors. ND filters are available unmounted in sizes 10 mm to 74 mm diameter and mounted with common thread sizes M 25.5 to M 67.
ND filters decrease the brightness of an image without changing the depth of field (DoF). They attenuate light by absorbing a part of the energy of the VIS wavelength, without influence on the color balance. The optical density (OD) is a function of the thickness of the glass. ODs are additive, achieve a higher value by adding several ODs together, than stack according filters until needed OD is reached. Filters IF 101 (OD 0.3), IF 102 (OD 0.6) and IF 103 (OD 0.9) come with broadband AR coating E.
Neutral Density (ND) Filters
Neutral Density Specifications PDF
| Part Number | Description | Datasheet |
| ND 0.6 | Optical Density OD 0.6 | |
| ND 0.9 | Optical Density OD 0.9 | |
| ND 1.8 | Optical Density OD 1.8 | |
| ND 3.0 | Optical Density OD 3.0 | |
| ND 102 | Optical Density OD 102 | |
| ND 103 | Optical Density OD 103 | |
| ND 106 | Optical Density OD 106 | |
| ND 110 | Optical Density OD 110 |
