Unlike some competing light sources, the AlphaBright has been designed to work with optical filters without causing abberations in the light output.
If the light source is too bright use this filter to cut light output by 99%. This neutral density filter has been espcially choosen as it works across the entire wavelength range from 400nm through the visible and NIR regions to 2,500nm.
This neutral density filter is supplied with a special Alphabright filter holder for easy insertion / removal from the unit. The holder can also be used to fit any standard 25.4mm diameter, 1mm thick filter.