Optolong CLS Filters Telescope Mounting Clamp While not intended for visual

While not intended for visual use of the H-alpha line

Pagers and beepers in warehouse

balancing sensitivity and resolution for both planetary and extended exposure imaging

guiding software

Optolong CLS Filters Telescope Mounting Clamp While not intended for visualThe Optolong 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