Midwest Optical ND400-37.5
ND400-37.5$118.75Request Lead Time
Neutral Density Filter
- Useful Range: 425 to 675 nm
- Optical Density: 4.0
- Transmission: 0.01%
- Tolerance: +/- 0.003%
- Surface Quality: 40/20
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Description
ND400 absorptive neutral density filters have an optical density of 4.0, meaning that they transmit an average of 0.01% of the visible light. Surprisingly, this amount of light passing though the filter is easily detectable by the human eye. Because the glass substrate is absorbing 99.9% of the light that passes into the filter, it is not recommended that these filters be used in laser applications or immediately in front of high wattage lamps.
- Useful Range: 425 to 675 nm
- Optical Density: 4.0
- Transmission: 0.01%
- Tolerance: +/- 0.003%
- Surface Quality: 40/20
| Product Type: | Visible |
| Filter Size: | M37.5 x 0.5 |
| Spectral Range: | 425 to 675 nm |
| Tolerance: | =+/- 0.003% |
| Family: | Neutral Density |
| Transmission: | 0.01% |
| Optical Density: | 4 |
| Surface Quality: | 40/20 |
Data Sheets
User Manuals
Sample Images
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ND400 example