ND Filters

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Absorptive Neutral Density (ND) Filters

Attenuates Visible Light Via Absorption, Rather than Reflection
Multiple Filters Can be Stacked for Increased Blocking
Optical Densities from 0.1 to 4.0 are Available
Also Available Pre-mounted in C-Mount Housings

New C-Mount Absorptive Neutral Density (ND) Filters

Pre-mounted in Engraved C-Mount Housings
Simplify Integration into Optical Systems
Optical Densities from 0.15 to 2.5
Also Available Unmounted

New Anti-Reflection (AR) Coated HOYA Absorptive Neutral Density (ND) Filters

Optical Densities from 0.1 to 4.0
VIS 0°, NIR I, and NIR II Coating Options
12.5, 25, and 50mm Diameter Sizes
Uncoated HOYA or SCHOTT ND Filters Also Available

Continuously Variable Neutral Density Filters

Continuous Linear Adjustment of Optical Density
Use in Pairs to Control Beam Transmission
Ideal for 400 - 700nm

Non-Reflective Neutral Density (ND) Filters

Prevent Unwanted Reflection Towards the Light Source
Spectrally Flat
VIS and NIR Ranges Available

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

Reflective Neutral Density (ND) Filters

Spectrally Flat
Maximum Accuracy and Neutrality at Moderate Price
Use Stacks to Create Intermediate Density Values

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

UV-VIS Neutral Density (ND) Filters

Ideal for 250-700nm Sources
Optical Densities Ranging from 0.3 to 3.0

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ND Filters are used to reduce transmission evenly over a range of wavelengths in a variety of applications including microscopy, imaging, or spectroscopy. ND Filters reduce the intensity of light by absorbing or reflecting an even portion of the transmitted light determined by the filter's optical density. ND Filters are available in a wide range of densities or materials that may be stacked together to increase optical density.