VAONIS CLS Filter for Vespera (AC023)

With the Vespera Light Pollution Filter or CLS (City Light Suppression) filter, you can improve the quality of your photos when observing in the city or in suburbs It weakens the effects of light pollution and thus increases the contrast between the photographed celestial object and the background sky. The broadband filter blocks wavelengths emitted mainly by night city lighting or unwanted natural light, while allowing the main wavelengths of sky objects to pass through The light pollution filter is especially useful for enhancing the contrasts of deep sky objects: nebula, star clusters, galaxies, etc Due to the filtered wavelengths, it is particularly effective in emission fogs. It has been specially developed for the Vespera lens and can be easily and discreetly inserted into the optical arm The lens ring that holds the CLS filter is equipped with an electronic chip that allows Vespera to detect it