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0.3 OD, 50mm Dia., IR Neutral Density Filter

Stock #64-358
Qty 1-10
Qty 11
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Metallic Based ND
Diameter (mm):
50.00 ±0.2
Optical Density OD (Average):
Surface Quality:
Thickness (mm):
1.00 ±0.2
Transmission (%):
Transmission Tolerance (%):
Neutral Density Filter
Blocking Wavelength Range (nm):
2000 - 14,000
Germanium (Ge)
Parallelism (arcmin):
Clear Aperture (%):
Wavelength Range (μm):
2 - 14
Surface Flatness:
3 - 5λ

Regulatory Compliance

RoHS 2015:
Reach 209:

Product Family Description

  • Spectrally Flat from 2μm to 14μm
  • Precision Germanium Substrate

Our IR Neutral Density Filters feature excellent linearity over a wide spectral band of 2μm to 14μm. Ideal for thermal and medical imaging, the filters are available in a variety of densities and 2 size options. Attenuation is achieved by a metal alloy coating, which employs a combination of absorption and reflection to achieve the stated transmittance value. All 5 optical densities are available as part of our Neutral Density Filter Kits. The kits are ideal for integration with our filter wheels.

Please contact our Applications Engineering Department to discuss custom size and density options.

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