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  3. Optical Filters
  4. Neutral Density Filters
  5. Infrared ND Filters
  6. NDIR10-30

Neutral Density Filter, Infrared, 25 mm, 3.0 OD, +0.08/-0.05% Tolerance

  • Size
    Ø25.0 mm
  • Wavelength Range
    2000-5000 nm
  • Optical Density
    3
  • Transmission
    0.1%
  • Transmission Tolerance
    +.08/-0.05%
  • Material
    Germanium
  • Coating Type
    Metallic Neutral Density
  • Size Tolerance
    ± 0.2 mm
  • Thickness
    1.0 mm
  • Thickness Tolerance
    ± 0.2 mm
  • Surface Flatness
    3-5 λ per inch
  • Surface Quality
    60-40 scratch-dig
  • Clear Aperture
    90 % of central diameter
  • Parallelism
    < 10 arc minute
Other