VAONIS CLS Filter for Vespera (AC023)

The Vespera light pollution filter or CLS (City Light Suppression) filter allows you to improve the quality of your photos when observing in the city or suburbs It attenuates the effects of light pollution and thus increases the contrast between the celestial object being photographed and the background sky.The broadband filter blocks wavelengths mainly emitted by urban night lighting or undesirable natural light, while allowing through the main wavelengths from celestial objects The anti-light pollution filter is particularly useful for improving the brightness of deep sky objects: nebulae, star clusters, galaxies, etc It is especially effective on emission nebulae because of the filtered wavelengths.Designed specifically for the Vespera lens, it fits easily and discreetly into the optical arm The lens ring that holds the CLS filter is equipped with an electronic card that allows Vespera to detect it