We can supply 5 sets of calibrated filters.
- Set of 2 Wavelength filters Holmium and Didymium Part No. 950-100
- Set of 4 calibrated Neutral density filters Part No. 950-200
- Set of 2 Stray light filters 220nm and 340nm Part No. 950-300
- Pharmacopoeia test set for wavelength, absorbance and stray light Part No. 950-500
- Resolution test set Part No. 960-600
All sets are issued with a calibration certificate which is traceable to international standards.
The Neutral Density filters are calibrated at 546nm, however additional wavelengths can be specified.
Please contact us by telephone or email below.