Neutral density filters | Absorption Schott Glass

Neutral density filters attenuate light by a constant amount that is, to first order, independent of the wavelength neutral density filters are designed to equally reduce the transmission over a specified spectrum, either by absorption or reflection. Knight Optical stock several ranges for your specific application.

Absorptive Glass Neutral Density Filters

Gelatin Neutral Density Filters

Metallic Neutral Density Filters

2 OD Gelatin ND Filter 50x50x0.1mmthk

£37.35

3 OD Gelatin ND Filter 50x50x0.1mmthk

£37.35

1 OD Gelatin ND Filter 50x50x0.1mmthk

£37.35

Absorptive Glass Neutral Density Filters

3 OD Metallic ND Filter UV Grade 50x50x2mmthk

£74.25

3 OD Metallic ND Filter UV Grade 25mmdia x 2mmthk

£46.75

2 OD Metallic ND Filter UV Grade 50x50x2mmthk

£74.25

2 OD Metallic ND Filter UV Grade 25mmdia x 2mmthk

£46.75

1.5 OD Metallic ND Filter UV Grade 50x50x2mmthk

£74.25

1.5 OD Metallic ND Filter UV Grade 25mmdia x 2mmthk

£46.75

1 OD Metallic ND Filter UV Grade 50x50x2mmthk

£74.25

1 OD Metallic ND Filter UV Grade 25mmdia x 2mmthk

£46.75

0.8 OD Metallic ND Filter UV Grade 50x50x2mmthk

£74.25

0.8 OD Metallic ND Filter UV Grade 25mmdia x 2mmthk

£46.75

0.7 OD Metallic ND Filter UV Grade 50x50x2mmthk

£74.25

0.7 OD Metallic ND Filter UV Grade 25mmdia x 2mmthk

£46.75

0.6 OD Metallic ND Filter UV Grade 50x50x2mmthk

£74.25

0.6 OD Metallic ND Filter UV Grade 25mmdia x 2mmthk

£46.75

0.5 OD Metallic ND Filter UV Grade 50x50x2mmthk

£74.25

0.5 OD Metallic ND Filter UV Grade 25mmdia x 2mmthk

£46.75

0.5 OD Metallic ND Filter UV Grade 12.5mmdia x 2mmthk

£22.00

0.4 OD Metallic ND Filter UV Grade 50x50x2mmthk

£74.25

0.4 OD Metallic ND Filter UV Grade 25mmdia x 2mmthk

£46.75

0.3 OD Metallic ND Filter UV Grade 50x50x2mmthk

£74.25

0.3 OD Metallic ND Filter UV Grade 25mmdia x 2mmthk

£46.75

0.3 OD Metallic ND Filter UV Grade 12.5mmdia x 2mmthk

£22.00

0.2 OD Metallic ND Filter UV Grade 50x50x2mmthk

£74.25

0.2 OD Metallic ND Filter UV Grade 25mmdia x 2mmthk

£46.75

0.1 OD Metallic ND Filter UV Grade 50x50x2mmthk

£74.25

0.1 OD Metallic ND Filter UV Grade 25mmdia x 2mmthk

£46.75

0.03 OD Metallic ND Filter UV Grade 50x50x2mmthk

£35.20

0.03 OD Metallic ND Filter UV Grade 25mmdia x 2mmthk

£21.78

4 OD Gelatin ND Filter 50x50x0.1mmthk

£37.35

1.1 OD Absorptive Glass ND Filter 27.2mmdia x 2mmthk

£20.52

0.9 OD Gelatin ND Filter 50x50x0.1mmthk

£37.35

0.9 OD Gelatin ND Filter 300x100x0.1mmthk

£324.50

0.8 OD Gelatin ND Filter 50x50x0.1mmthk

£37.35

0.7 OD Gelatin ND Filter 50x50x0.1mmthk

£37.35

0.6 OD Gelatin ND Filter 50x50x0.1mmthk

£37.35

0.5 OD Gelatin ND Filter 50x50x0.1mmthk

£37.35

0.4 OD Gelatin ND Filter 50x50x0.1mmthk

£37.35

0.3 OD Gelatin ND Filter 50x50x0.1mmthk

£37.35

0.2 OD Gelatin ND Filter 50x50x0.1mmthk

£37.35

0.1 OD Gelatin ND Filter 50x50x0.1mmthk

£37.35

3 OD Metallic ND Filter Visible Grade 50x50x2mmthk

£38.50

3 OD Metallic ND Filter Visible Grade 25mmdia x 2mmthk

£24.75

2 OD Metallic ND Filter Visible Grade 50x50x2mmthk

£38.50

2 OD Metallic ND Filter Visible Grade 25mmdia x 2mmthk

£24.75

1.5 OD Metallic ND Filter Visible Grade 50x50x2mmthk

£38.50

1.5 OD Metallic ND Filter Visible Grade 25mmdia x 2mmthk

£24.75

1 OD Metallic ND Filter Visible Grade 50x50x2mmthk

£38.50

1 OD Metallic ND Filter Visible Grade 25mmdia x 2mmthk

£24.75

0.8 OD Metallic ND Filter Visible Grade 50x50x2mmthk

£38.50

0.8 OD Metallic ND Filter Visible Grade 25mmdia x 2mmthk

£24.75

0.7 OD Metallic ND Filter Visible Grade 50x50x2mmthk

£38.50

0.7 OD Metallic ND Filter Visible Grade 25mmdia x 2mmthk

£24.75

0.6 OD Metallic ND Filter Visible Grade 50x50x2mmthk

£38.50

0.6 OD Metallic ND Filter Visible Grade 25mmdia x 2mmthk

£24.75

0.5 OD Metallic ND Filter Visible Grade 50x50x2mmthk

£38.50

0.5 OD Metallic ND Filter Visible Grade 25mmdia x 2mmthk

£24.75

0.5 OD Metallic ND Filter Visible Grade 12.5mmdia x 2mmthk

£16.50

0.4 OD Metallic ND Filter Visible Grade 50x50x2mmthk

£38.50

0.4 OD Metallic ND Filter Visible Grade 25mmdia x 2mmthk

£24.75

0.3 OD Metallic ND Filter Visible Grade 50x50x2mmthk

£38.50

0.3 OD Metallic ND Filter Visible Grade 25mmdia x 2mmthk

£24.75

0.3 OD Metallic ND Filter Visible Grade 12.5mmdia x 2mmthk

£16.50

0.2 OD Metallic ND Filter Visible Grade 50x50x2mmthk

£38.50

0.2 OD Metallic ND Filter Visible Grade 25mmdia x 2mmthk

£24.75

0.1 OD Metallic ND Filter Visible Grade 50x50x2mmthk

£38.50

0.1 OD Metallic ND Filter Visible Grade 25mmdia x 2mmthk

£24.75

0.03 OD Metallic ND Filter Visible Grade 50x50x2mmthk

£29.10

0.03 OD Metallic ND Filter Visible Grade 25mmdia x 2mmthk

£19.20

0.2 OD Absorptive Glass ND Filter 7mmdia x 2mmthk

£5.50

4 OD Absorptive Glass ND Filter 50x50x3.9mmthk

£42.08

4 OD Absorptive Glass ND Filter 25mmdia x 3.9mmthk

£20.52

4 OD Absorptive Glass ND Filter 12.5mmdia x 3.9mmthk

£13.09

3 OD Absorptive Glass ND Filter 50x50x2.4mmthk

£42.08

3 OD Absorptive Glass ND Filter 25mmdia x 2.9mmthk

£20.52

0.3 OD Absorptive Glass ND Filter 25x20x2.9mmthk

£42.08

3 OD Absorptive Glass ND Filter 12.5mmdia x 2.9mmthk

£13.09

0.054 OD Absorptive Glass ND Filter 25mmdia x 1.1mmthk

£14.52

0.076 OD Absorptive Glass ND Filter 25mmdia x mmthk

£14.52

0.13 OD Absorptive Glass ND Filter 25mmdia x 0.95mmthk

£14.52

0.15 OD Absorptive Glass ND Filter 25mmdia x 1.2mmthk

£14.52

0.26 OD Absorptive Glass ND Filter 26mmdia x 2.15mmthk

£14.52

0.3 OD Absorptive Glass ND Filter 25mmdia x 1mmthk

£14.52

2.5 OD Absorptive Glass ND Filter 50x50x2.4mmthk

£42.08

2.5 OD Absorptive Glass ND Filter 25mmdia x 2.4mmthk

£20.52

2.5 OD Absorptive Glass ND Filter 12.5mmdia x 2.4mmthk

£13.09

2 OD Absorptive Glass ND Filter 50x50x3.8mmthk

£42.08

2 OD Absorptive Glass ND Filter 25mmdia x 3.8mmthk

£20.52

2 OD Absorptive Glass ND Filter 12.5mmdia x 3.8mmthk

£13.09

1.5 OD Absorptive Glass ND Filter 50x50x2.9mmthk

£42.08

1.5 OD Absorptive Glass ND Filter 25mmdia x 2.9mmthk

£20.52

1.5 OD Absorptive Glass ND Filter 12.5mmdia x 2.9mmthk

£13.09

1 OD Absorptive Glass ND Filter 50x50x3.9mmthk

£42.08

1 OD Absorptive Glass ND Filter 25mmdia x 3.9mmthk

£20.52

1 OD Absorptive Glass ND Filter 12.5mmdia x 3.9mmthk

£13.09

0.8 OD Absorptive Glass ND Filter 50x50x3.1mmthk

£42.08

0.8 OD Absorptive Glass ND Filter 25mmdia x 3.1mmthk

£20.52

0.8 OD Absorptive Glass ND Filter 12.5mmdia x 3.1mmthk

£13.09

0.6 OD Absorptive Glass ND Filter 50x50x2.3mmthk

£42.08

0.6 OD Absorptive Glass ND Filter 25mmdia x 2.3mmthk

£20.52

0.6 OD Absorptive Glass ND Filter 12.5mmdia x 2.3mmthk

£13.09

0.5 OD Absorptive Glass ND Filter 50x50x2.3mmthk

£42.08

0.5 OD Absorptive Glass ND Filter 25mmdia x 4.1mmthk

£20.52

0.5 OD Absorptive Glass ND Filter 12.5mmdia x 4.1mmthk

£13.09

0.4 OD Absorptive Glass ND Filter 50x50x3.2mmthk

£42.08

0.4 OD Absorptive Glass ND Filter 25mmdia x 3.2mmthk

£20.52

0.4 OD Absorptive Glass ND Filter 12.5mmdia x 3.2mmthk

£13.09

0.3 OD Absorptive Glass ND Filter 50x50x2.3mmthk

£42.08

0.3 OD Absorptive Glass ND Filter 25mmdia x 2.3mmthk

£20.52

0.3 OD Absorptive Glass ND Filter 12.5mmdia x 2.3mmthk

£13.09

0.2 OD Absorptive Glass ND Filter 50x50x1.4mmthk

£42.08

0.2 OD Absorptive Glass ND Filter 25mmdia x 1.4mmthk

£20.52

0.2 OD Absorptive Glass ND Filter 12.5mmdia x 1.4mmthk

£13.09

0.1 OD Absorptive Glass ND Filter 25mmdia x 0.6mmthk

£20.52

0.1 OD Absorptive Glass ND Filter 12.5mmdia x 0.6mmthk

£13.09

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