NIST 2930 VIS Photometric Neutral Density Kit (0.1%T, 0.3%T, 90%T) (400-700nm)


NIST 2930 VIS Photometric Neutral Density Kit (0.1%T, 0.3%T, 90%T) (400-700nm)


Firefly's equivalent of the NIST SRM 2930 calibration reference kit for testing photometric accuracy in the VIS range (400-700nm). This kit comes with Firefly's Lifetime Warranty and never requires recalibration.

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This includes the following filters:


  • Photometric accuracy verification in the VIS range (400-700nm)

Product Specs:

  • Wavelength range: 400-700nm (this kit can be used for any wavelength within this range)
  • Tolerances: HF-0.04 (+/- 0.0020 au); HF-2.5 (+/- 0.0090au); HF-3 (+/- 0.0181au)
  • External dimensions of individual filters: 12.5 x 12.5 x 45.0 mm

Benefits of using Firefly's Solid-State Calibration Standards:

  • Highly accurate and consistent spectrophotometer calibration every time.
  • Never has to be replaced.
  • Never has to be recalibrated if used properly.
  • Scratch-resistant coating protects optical surfaces
  • Can be used in any spectrophotometer (with standard 12.5 x 12.5 x 45.0 mm holder)
  • Surpasses NIST-2930 requirements and tolerances
  • NIST-compliant

Sample NIST-2930 Certificate of Calibration

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