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Frequently Asked Questions
Yes, the DF-501-Green filter is environmentally stable and has durable multi-layer dielectric coatings with low absorption characteristics that make it robust and easy to clean.
The DF-501-Red filter has a transmission of greater than 90% in the wavelength range of 630 nm to 760 nm, and an absorption of less than 1% in the range of 400 nm to 570 nm.
The DF-501-Blue filter is a dichroic filter that is designed to transmit light in the wavelength range of 400 nm to 480 nm.
The substrate material used in the construction of the filter is heat-resistant borosilicate glass that is 1 mm thick.
The DF-501-Blue filter is available in sizes ranging from 10 X 10 mm up to 160 X 110 mm.