Knight Optical (UK) Ltd 440nm Bandpass Wratten Colour Filter 75x75x0.1mmthk 440FWP7575

The colour effects within Wratten 2 Colour filters are achieved using organic dyes in a gelatine material which is not possible in colour glass. Although wratten bandpass filters are less robust than polyester filters, their spectral data is more accurately controlled and documented. The filters listed here are band-pass type Wratten 2 colour filters. Wratten 2 filters were originally designed for use in photography but are also used in imaging applications from industrial manufacture to medical. We offer stock Wratten 2 filters in a standard 75x75mm sheet. Custom filters may be cut to special sizes at short notice where stock is available. For more information on our stock Wratten 2 filters or to enquire about a custom quote, speak to our technical sales team.