Neutral Density Filters

Neutral Density Filters

Product Details:

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Product Description

Neutral Density Filters
  • Type: Fixed, Variable Attenuation
  • Material: BK7
  • Size (Fixed Attenuation): 12.5mm-50mm
  • Size (Variable Attenuation): 25mm-100mm
  • Clear Aperture: ≥85%
  • Dimension Tolerance: - 0.1mm
  • Optical Density: 1-4
  • Surface Flatness: λ /4 per 25mm @632nm
  • Parallelism: 30 arc-sec
  • Customized Attenuation (OD), available on demand

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