Filters

Filters for higher Luminance

The measuring range in Radiance mode can be shifted to higher intensities by external attenuating filters, mounted in a cap to be attached to the instrument.

The filters for specbos 1211 and specbos 1211UV have different housings:

Neutral density filter for specbos 1211 (right) and specbos 1211 UV (left)

The filters can also be used for spectraval if necessary.

Additionally there is offered a more attenuating filter with OD 3.5. It is important for the measurement of hazard effects of optical radiation, because there the luminance can reach values up to several million cd/m² (see application note 26). This filter was designed for specbos 1211UV.

Part number:

ACC 011UVOD3.5

Please note:
Filters for devices, which bought before 2019, only on request with serial number and wished measuring range.