Neutral density filter,NDF filter

Application：Imaging Systems,Measuring Instruments,photograph
Substrate：Color glass,Soda-lime glass
Package：Thin film package or capacitor paper vacuum package



Definition of NDF Filters

Neutral Density Filter reduces the brightness of an image without changing the color of the scene. It allows all wavelengths to pass through equally.



NDF Filters List
Part No Type Thickness

Application：Imaging Systems,Measuring Instruments,photograph
Substrate：Color glass,Soda-lime glass
Package：Thin film package or capacitor paper vacuum package



Definition of NDF Filters

Neutral Density Filter reduces the brightness of an image without changing the color of the scene. It allows all wavelengths to pass through equally.



NDF Filters List
Part No Type Thickness Transmission Tolerance(400-700nm) Details
NDFA-02 color glass 2mm 2.0% 1.0~4.0% More
NDFA-05 color glass 2mm 5.0% 1.0~9.0%
NDFA-10 color glass 2mm 10.0% 6.0~15.0% More
NDFA-25 color glass 2mm 25.0% 18.0~32.0%
NDFA-30 color glass 2mm 30.0% 23.0~37.0%
NDFA-50 color glass 2mm 50.0% 41.0~59.0% More
NDFA-65 color glass 2mm 65.0% 58.0~72.0%
NDFA-70 color glass 2mm 70.0% 63.0~77.0%
NDFA-70R color glass 2mm M25,M27,M28,M30 ring(photograph)


OD value with transmission 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%