| Our solid UV and IR Glass filters achieve high absorption of unwanted UV and IR wavelengths at relatively low cost. The following thickness has been chosen for average absorption in relation to filter type, however this can be altered to meet your required wavelength. The filters listed below are of the long-pass type. Specifications: | Material: | Schott Colour Glass | | Diameter: | +0.0 / -0.2 mm | | Length/width: | ± 0.2 mm | | Thickness: | ± 0.2 mm | | Surface quality: | <60-40 scratch/dig | | Flatness: | <2.5λ over 90% test area | | Parallelism: | <3 arcmin | Options available >> Cutting down or edged to special shapes and sizes >> Mounting (Circles) >> AR Coating | 
UV + IR absorption Filters - Glass Type - Long-pass Filters
