Optical Filters

Standard Neutral Density Filter Product List

Neutral density filters uniformly attenuate the intensity of light over a broad spectral range. Attenuation is accomplished by using either a light-absorbing glass or a thin-film metal coating that combines absorption and reflection. Neutral density (ND) filters attenuate spectral regions selected from 250 to 2,500 nm. The level of attenuation can be specified from optical density 0.04 to 4.0. They are available in the following standard sizes: 18, 25, 32, 45 and 50mm diameter and 50x50mm square

Detailed below is the standard  nd filters list available from HORIBA Scientific UK. In addition to our 6-piece ND filter set, we now offer a set of 12 neutral density filters ranging from OD 0.05 (90% transmission) to OD 3.0 (0.1% transmission), available in a variety of sizes.

XB193

Transmission 89%

ND 0.05

XB13

Transmission 79%

ND 0.1

XB194

Transmission 63%

ND 0.2

XB14

Transmission 50%

ND 0.3

XB195

Transmission 40%

ND 0.4

XB15

Transmission 32%

ND 0.5

XB196

Transmission 25%

ND 0.6

XB16

Transmission 10%

ND 1.0

XB197

Transmission 20%

ND 0.7

XB17

Transmission 1%

ND 2.0

XB198

Transmission 16%

ND 0.8

XB27

Transmission 0.1%

ND 3.0

XB28

Set of 6 ND Filters - (ND's 0.1, 0.3, 0.5, 1.0, 2.0 & 3.0)

XB199

Set of 12 ND Filters - (ND's 0.05, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 1.0, 2.0 & 3.0)