ND120 Neutral Density Filter - Absorptive 6.25% Transmission
Neutral Density Filter - Absorptive 6.25% Transmission for machine-vision imaging — passes 425-675nm and blocks out-of-band light for repeatable contrast on the line.
Overview [ 01 ]
ND120 absorptive neutral density filters have an optical density of 1.2, averaging 6.25% transmission over the visible spectrum. These filters include identical male and female threads on either end so that they can be stacked with other ND filters to achieve various optical densities. For example, the result from stacking two ND120 filters together would be very similar to utilizing one (ND240) filter. Visible transmission would approximately equal 0.4% of visible light.
| nm | T % |
|---|---|
| 1100 | 2.48 |
| 1090 | 2.49 |
| 1080 | 2.50 |
| 1070 | 2.53 |
| 1060 | 2.56 |
| 1050 | 2.59 |
| 1040 | 2.63 |
| 1030 | 2.69 |
| 1020 | 2.75 |
| 1010 | 2.82 |
| 1000 | 2.91 |
| 990 | 2.99 |
| 980 | 3.11 |
| 970 | 3.22 |
| 960 | 3.35 |
| 950 | 3.49 |
| 940 | 3.65 |
| 930 | 3.82 |
| 920 | 4.01 |
| 910 | 4.22 |
| 900 | 4.44 |
| 890 | 4.68 |
| 880 | 4.92 |
| 870 | 5.26 |
| 860 | 5.58 |
| 850 | 5.84 |
| 840 | 6.13 |
| 830 | 6.44 |
| 820 | 6.81 |
| 810 | 7.18 |
| 800 | 7.57 |
| 790 | 7.97 |
| 780 | 8.36 |
| 770 | 8.76 |
| 760 | 9.15 |
| 750 | 9.53 |
| 740 | 9.87 |
| 730 | 10.06 |
| nm | T % |
|---|---|
| 720 | 10.07 |
| 710 | 9.80 |
| 700 | 9.18 |
| 690 | 8.19 |
| 680 | 7.03 |
| 670 | 6.01 |
| 660 | 5.53 |
| 650 | 5.32 |
| 640 | 5.33 |
| 630 | 5.40 |
| 620 | 5.37 |
| 610 | 5.20 |
| 600 | 5.03 |
| 590 | 5.00 |
| 580 | 5.26 |
| 570 | 5.70 |
| 560 | 6.10 |
| 550 | 6.28 |
| 540 | 6.22 |
| 530 | 5.98 |
| 520 | 5.77 |
| 510 | 5.71 |
| 500 | 5.85 |
| 490 | 6.12 |
| 480 | 6.55 |
| 470 | 6.98 |
| 460 | 7.13 |
| 450 | 6.66 |
| 440 | 6.13 |
| 430 | 6.15 |
| 420 | 5.79 |
| 410 | 5.52 |
| 400 | 5.22 |
| 390 | 3.69 |
| 380 | 1.55 |
| 370 | 1.22 |
| 360 | 0.54 |
| 350 | 0.10 |
Specifications [ 02 ]
Useful range425-675nm
Wavelength bandVisible
Min peak transmission≥10%
Average transmission6.25%
Optical density1.2
Tolerance+/- 0.63%
Surface quality40/20
Mount & Size [ 03 ]
25.4® C-Mount
mm
Enter your lens part number to get the right filter size.