An optional filter wheel, model 252, can be fitted inside the monochromator accommodating up to 6 filters for automatic higher order removal from 200nm to beyond 20mm, using filters from our OS range. It is also fitted with a shutter for automated dark current measurements.

Model No. (transmission)	Insertion Wavelength	Order Sort up to...
OS400	400nm	720nm
OS700	700nm	1300nm
OS1250	1250nm	2µm
OS2000	2µm	3.6µm
OS3600	3.6µm	6.4µm
OS6000	6.0µm	11µm
OS10500	10.5µm	20µm