Pay in 4 interest-free payments of $9.25 Learn more
Ships within 48 hours · Estimated delivery Oct 19 - Oct 24
ensuring long-lasting performance
and star clusters
25" and 2" focusers
Wired microphone headset with one-key recording function
the halo of OIII 3nm filter was optimized by improving the coating technology
Optolong CLS Filters Guest Pager System ensuring long-lasting performanceThe 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
