ND400 Neutral Density Filter
ND400 Neutral Density Filter absorptive neutral density filters have an optical density of 4.0, meaning that they transmit an average of 0.01% of visible light.
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- Description
- Specifications
Description
ND400 Neutral Density Filter
ND400 absorptive neutral density filters have an optical density of 4.0, meaning that they transmit an average of 0.01% of visible light. Surprisingly, this amount of light passing through the filter is easily detectable by the human eye. Because the glass substrate is absorbing 99.99% of the light that passes into the filter, it is not recommended that these filters be used in laser applications or immediately in front of high wattage lamps.
- Useful Range : 425-675nm
- Optical Density : 4.0
- Transmission: 0.01%
- Tolerance : +/- 0.003%
- Surface Quality : 40/20
ND Series – Visible (VIS) Spectrum
- Absorptive filter effective from 425-675nm
- Available in optical densities ranging from 0.10-6.0
Neutral Density Filters serves as “sunglasses” for your system and can be used with monochrome or color cameras. Designed to reduce light intensity neutrally over a specific wavelength range without affecting image color or contrast.
- Available in a variety of optical densities
- Reduce light intensity while maintaining a wide aperture and shallow depth of field
- Minimize pixel saturation
- Can be stacked with other Neutral Density Filters to test various optical densities
- Exceptional surface quality; 40/20 scratch/dig
ND400 Neutral Density Filter Applications
Applications include imaging in intense lighting situations (i.e. molten metal and welding) outdoor aerial imaging and photography. Neutral Density Filters help reduce shutter speed to create blur, preventing a “jello” effect in aerial imaging.
Mount & Size Options
In-stock, ready-to-ship Neutral Density Filters are available in Threaded Mounts, sizes M13.25 to M105; 25.4 C-Mount; Slip Mounts; or Unmounted. Custom shapes and sizes are available.
| wavelength (nm) |
transmission (%) |
|---|---|
| 1100 | 0.28 |
| 1090 | 0.29 |
| 1080 | 0.29 |
| 1070 | 0.28 |
| 1060 | 0.28 |
| 1050 | 0.27 |
| 1040 | 0.27 |
| 1030 | 0.26 |
| 1020 | 0.26 |
| 1010 | 0.27 |
| 1000 | 0.28 |
| 990 | 0.27 |
| 980 | 0.27 |
| 970 | 0.27 |
| 960 | 0.28 |
| 950 | 0.29 |
| 940 | 0.29 |
| 930 | 0.30 |
| 920 | 0.31 |
| 910 | 0.31 |
| 900 | 0.32 |
| 890 | 0.32 |
| 880 | 0.34 |
| 870 | 0.33 |
| 860 | 0.33 |
| 850 | 0.33 |
| 840 | 0.33 |
| 830 | 0.33 |
| 820 | 0.32 |
| 810 | 0.32 |
| 800 | 0.31 |
| 790 | 0.30 |
| 780 | 0.28 |
| 770 | 0.27 |
| 760 | 0.25 |
| 750 | 0.23 |
| 740 | 0.21 |
| 730 | 0.19 |
| wavelength (nm) |
transmission (%) |
|---|---|
| 720 | 0.16 |
| 710 | 0.13 |
| 700 | 0.10 |
| 690 | 0.07 |
| 680 | 0.04 |
| 670 | 0.03 |
| 660 | 0.02 |
| 650 | 0.02 |
| 640 | 0.01 |
| 630 | 0.01 |
| 620 | 0.01 |
| 610 | 0.01 |
| 600 | 0.01 |
| 590 | 0.01 |
| 580 | 0.01 |
| 570 | 0.01 |
| 560 | 0.01 |
| 550 | 0.01 |
| 540 | 0.01 |
| 530 | 0.01 |
| 520 | 0.01 |
| 510 | 0.01 |
| 500 | 0.01 |
| 490 | 0.01 |
| 480 | 0.01 |
| 470 | 0.01 |
| 460 | 0.01 |
| 450 | 0.01 |
| 440 | 0.00 |
| 430 | 0.01 |
| 420 | 0.01 |
| 410 | 0.01 |
| 400 | 0.00 |
| 390 | 0.00 |
| 380 | 0.00 |
| 370 | 0.00 |
| 360 | 0.00 |
| 350 | 0.01 |
