The Baader UV/IR filter is an almost "essential" piece for users of digital cameras photographing with achromatic refractors. The unfocused UV/IR rays from the lenses can cause a disturbing "halo" on the CCD chip, which can be completely eliminated with the use of the filter. Its high quality is guaranteed by a 98% light transmission rate and excellently crafted optical glass, which is highly resistant to scratches thanks to its hard coating. Naturally, it can be combined with other filters and its surfaces are equipped with anti-reflective coatings for impeccable imaging.
The UV/IR filter is also available in a set with red, green, and blue filters, which opens up the possibility of creating color images even with monochrome sensors.