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

Main features

 

  • From 0,1 to 4 optical density selection
  • Standard size is ⌀25,4 mm
  • Does not change hue of color
  • Excellent for low-power applications

 

Application examples

 

  • Exposure control in photography
  • Laser light attenuation
Request custom
  • Description
  • Specifications

Neutral density (ND) filters reduce the intensity of all wavelengths of light equally by radiation absorption process and does not change hue of color. The purpose of a neutral density filter is to reduce the amount of light entering the optical system.

Neutral density (by absorption) filters
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

 

Optical density and transmission comparison
Optical density Transmission
0,1 79%
0,2 63%
0,3 50%
0,4 40%
0,5 32%
1 10%
1,5 3%
2 1%
3 0,1%
4 0,01%
Order your item
Face dimensions Optical density Design wavelength SKU price quantity
⌀25,4 mm
0,1
450-650 nm
6498
Request
⌀25,4 mm
0,2
450-650 nm
6499
Request
⌀25,4 mm
0,3
450-650 nm
6500
Request
⌀25,4 mm
0,4
450-650 nm
6501
Request
⌀25,4 mm
0,5
450-650 nm
6502
Request
⌀25,4 mm
1
450-650 nm
6503
Request
⌀25,4 mm
1,5
450-650 nm
6504
Request
⌀25,4 mm
2
450-650 nm
6505
Request
⌀25,4 mm
3
450-650 nm
6506
Request
⌀25,4 mm
4
450-650 nm
6507
Request