Optolong Filters Clip Filter for Canon EOS APS-C CLS-CCD (59443)
1173.64 kr
Tax included
The CLS (City Light Suppression) broadband filter is designed to enhance the visibility of deep sky objects by reducing the transmission of certain wavelengths associated with light pollution. It is particularly effective at blocking light from artificial sources such as mercury and sodium vapor lamps, as well as minimizing the unwanted 'sky glow' effect. The filter remains highly transparent to the main emission lines of nebulae, including OIII (496nm and 500nm), H-beta (486nm), NII (654nm and 658nm), H-alpha (656nm), and SII (672nm).