CLS (City Light Suppression) broadband filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury vapor lamps, both high & low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow).
Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photograghic purpose at sub-rural area.
We Ship Worldwide. Free Shipping Registered Article To Most Countries
20% Off With Purchase Of Telesope, Tracker Or Camera!
Official Optolong Dealer. We Sell Genuine Filters Only. Get Perfect Quality Filter
Interested Please Call 017-6063060/03-403171617/013-23103109
Visit Our Store In Setapak, KL. Malaysia Largest Telescope Store