Neutral density filters
The measuring range of specbos 1211-2 for Luminance mode measurements is given in the datasheet. It can be shifted to higher values by external attenuating filters, mounted in a cap to be attached to the instrument.
The filters for specbos 1211-2 and specbos 1211UV-2 have different housings.
spectraval 15x1 can measure up to 100 000 cd/m2 (typical white LED spectrum). It can be shifted to higher values by external attenuating filters, mounted in a cap to be attached to the instrument.
| Filter type | Measuring range Luminance (Illum. A) | Part number for specbos 1211-2 |
Part number for specbos 1211UV-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 type | Measuring range Luminance (Illum. A) | Part number for spectraval 15x1 |
| 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 |
