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
1
/1
