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REFLECTIVE NEUTRAL DENSITY FILTERS
Reflective Neutral Density filters possess level spectral transmittance characteristics across the visible region. Reflective Neutral density filters control light intensity without selectively absorbing energies at specific wavelengths. They are, therefore, generally used to attenuate the intensity of a beam of light over a broad spectral region. This property is often required to prevent saturation or damage to a wide variety of detectors and even the human eye.
Reflective Neutral density filters are available in standard densities of 0.3, 0.5, 1.0, 1.3, 1.5, 2.0, 2.5 and 3.0. Stack them and the total density is the sum of the density of each filter in the stack, permitting the creation of intermediate neutral density values.
| Specifications |
| Material |
- |
Lime soda glass |
| Dimensional tolerance |
- |
± 0.02" |
| Thickness |
- |
0.06" |
| Surface quality |
- |
80/50 Scratch Dig |
| Design wavelength range |
- |
400 - 700 nm |
| Density tolerance |
- |
± 5% of density |
| Parallelism |
- |
< 3 min of arc |
| Neutral Density Filters |
OPTICAL
DENSITY |
Tx% |
12.5 mm DIA.
(Unmounted) |
25 mm DIA.
(Unmounted) |
50 mm SQUARE
(Unmounted) |
| 0.3 |
50.0 |
2-1220 |
2-1300 |
2-1350 |
| 0.5 |
32.0 |
2-1221 |
2-1301 |
2-1351 |
| 1.0 |
10.0 |
2-1222 |
2-1302 |
2-1352 |
| 1.3 |
5.0 |
2-1223 |
2-1303 |
2-1353 |
| 1.5 |
3.2 |
2-1224 |
2-1304 |
2-1354 |
| 2.0 |
1.0 |
2-1225 |
2-1305 |
2-1355 |
| 2.5 |
0.32 |
2-1226 |
2-1306 |
2-1356 |
| 3.0 |
0.1 |
2-1227 |
2-1307 |
2-1357 |
| PRICE ($) * |
20.00 |
30.00 |
50.00 |
| 8 piece ND set (1 of each OD) |
2-1240 |
2-1320 |
2-1370 |
| PRICE ($) * |
136.00 |
204.00 |
340.00 |
*Minimum order requirement of $250.00 USD *Prices in USD and are list prices only
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