Neutral Density Filter, Radial Variable, 4.0 OD, Dark in center

HBO SBDF10 Radial Variable Neutral Density Filter, Dark in center, 1.0 OD

Manufacturer's part number :

SBDF40

Manufacturer HB Optical

HB Optical

Description :

SBDF40 Radial Variable Neutral Density filters attenuate light according to Gaussian function with 4.0 optical density. Filter can be used with white light as well as with lasers.

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    Features

  • Material: BK7, fused silica
  • Outside diameter: 25mm or 50mm
  • Standard linearity: ±5%
  • Parallelism: 3 arc minutes
  • standard deviation: ±5%
  • Optical density: 4.0
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Neutral Density Type Variable radial