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Arminas Butkus +370 5 219 4884
Neutral density (by absorption) filters
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Neutral density (by absorption) filters

Main features

 

  • Optical density selection from 0,1 to 4
  • ⌀25,4 mm standard diameter
  • Excellent for low-power applications
  • Custom dimensions, optical densities are available upon request

 

Application examples

 

  • Overexposure prevention for cameras and other detectors
Request custom View stock
  • Description
  • Specifications

Neutral density (by absorption) filters are designed to feature even and flat transmission over particular wavelength range and defined by optical density (OD). Overall optical attenuation is a sum of optical absorption in neutral density optical glass and Fresnel reflection losses. Neutral density optical filters densities adds up, if used in series.

Neutral density (by absorption) filters
Material Neutral density optical glass
Design wavelength 450-650 nm
Optical density tolerance ±5%
Clear aperture >85%
Face dimensions tolerance +0/-0,2 mm
Parallelism error <3 arcmin
Protective chamfers <0,35 mm at 45°
Surface quality 60-40 S-D
Surface flatness <1λ@632,8 nm
Coatings Uncoated, available upon request

 

Order your item
Face dimensions Optical density Design wavelength SKU price quantity
⌀25,4 mm
0,1
450-650 nm
6498
21 €
⌀25,4 mm
0,2
450-650 nm
6499
21 €
⌀25,4 mm
0,3
450-650 nm
6500
21 €
⌀25,4 mm
0,4
450-650 nm
6501
21 €
⌀25,4 mm
0,5
450-650 nm
6502
21 €
⌀25,4 mm
1
450-650 nm
6503
21 €
⌀25,4 mm
1,5
450-650 nm
6504
21 €
⌀25,4 mm
2
450-650 nm
6505
21 €
⌀25,4 mm
3
450-650 nm
6506
21 €
⌀25,4 mm
4
450-650 nm
6507
21 €