Neutral density filters
The measuring ranges of specbos 1211-2 and spectraval 1501 / 1511 for Luminance mode measurements are given in the datasheets. The ranges can be shifted to higher values using external attenuation filters, mounted in a cap to be attached to the instrument.
The filters for specbos 1211-2 and specbos 1211-UV-2 have different housings (see the right picture).
Filter for spectroradiometer JETI specbos
| Filter type | Measuring range Luminance (Illum. A) | Part number for specbos 1211-2 |
Part number for specbos 1211-UV-2 |
| OD 1.0 | 20 ... 10 000 000 cd/m² | ACC 010OD1.0 | ACC 010UVOD1.0 |
| OD 2.0 | 200 ... 100 000 000 cd/m² | ACC 010OD2.0 | ACC 010UVOD2.0 |
Please note:
If you want to order such filter for a device, which was manufactured before 2019, please add the serial number and the desired measuring range to your request.
Filter for spectroradiometer JETI spectraval
| Filter type | Measuring range Luminance (Illum. A) | Part number for spectraval 1501 and spectraval 1511 |
| OD 1.0 | 2 ... 1 400 000 cd/m² | ACC 033 OD1.0 |
| OD 2.0 | 20 ...14 000 000 cd/m² | ACC 033 OD2.0 |
