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Neutral Density Filter

The main purpose of using neutral density filters is to reduce the amount of light that can pass through the lens. As a result, if a shutter speed is kept the same, after adding a neutral density filter, a larger aperture must be used to obtain the same exposure. Similarly, if an aperture is kept the same, after adding a neutral density filter, a slower shutter speed must be used to obtain the same exposure.

 

Application:
Imaging Systems, Machine Vision, Measuring Instruments

Part No

Thickness

Trans%

ND FILTER-02

2mm

2.0%

ND FILTER-05

2mm

5.0%

ND FILTER-10

2mm

10.0%

ND FILTER-25

2mm

25.0%

ND FILTER-30

2mm

30.0%

ND FILTER-50

2mm

50.0%

ND FILTER-65

2mm

65.0%

ND FILTER-70

2mm

70.0%

 

Neutral Density Filter reduces the brightness of an image without changing the color of the scene.  It allows all wavelengths to pass through equally.    OD=Log(1/T)

OD

Trans%

OD

Trans%

0.10

79%

0.15

70%

0.20

63%

0.30

50%

0.40

40%

0.50

32%

0.60

25%

0.70

20%

0.90

12.5%

1.00

10%

1.30

5%

1.50

3.2%

2.00

1.0%

2.50

0.3%

3.00

0.1%

4.00

0.01%

5.00

0.001%

6.00

0.0001%

 

Part No

Thickness

Trans%

ND FILTER-07

0.1mm

7%

ND FILTER-12

0.1mm

12%

ND FILTER-23

0.1mm

23%

ND FILTER-30

0.1mm

30%

ND FILTER-50

0.1mm

50%

 

Variable Density Filter(VND)

Circular Variable  Neutral Density Filter (CVND)

Part No

Outside Dia (mm)

Inside Dia (mm)

 Optical Density

CVND-10

23

6

0.04  to 1.0

Linear Variable  Neutral Density Filter (LVND)

Part No

Optical Density

Size(mm)

LVND-10

0.04  to 1.0