Information on tariffs affecting the amateur astronomy industry

Save up to 40% on select Sky-Watcher telescopes and gear!Save up to 40% on select Sky-Watcher telescopes and gear!
One week only: enjoy an extra 10% off Clearance & Open Box gear!One week only: enjoy an extra 10% off Clearance & Open Box gear!
Save 47% on the Askar V 6-in-1 Telescope While Supplies Last!Save 47% on the Askar V 6-in-1 Telescope While Supplies Last!
Shop All Black Friday & Holiday Sales at Agena Astro!Shop All Black Friday & Holiday Sales at Agena Astro!
Shop the brand new ZWO CAA electronic rotator and pre-order today!Shop the brand new ZWO CAA electronic rotator and pre-order today!
Shop the all new ZWO ASI585MC AIR and pre-order today!Shop the all new ZWO ASI585MC AIR and pre-order today!
Shop the all new ZWO EAF Pro and EAF-N telescope focusers today!Shop the all new ZWO EAF Pro and EAF-N telescope focusers today!
Save up to 25% on ZWO gear!Save up to 25% on ZWO gear!
Save up to $300 on ZWO AM5 and AM3 mount packages while supplies last! Save up to $300 on ZWO AM5 and AM3 mount packages while supplies last!

Optolong Filters & Accessories

About Optolong Filters

While Optolong is a relative newcomer to the astronomy industry, they are no strangers to optics and filters. Optolong is a division of Yulong Optics Company, a high tech company specializing in optical filter design and production. Their products include bandpass filters, flourescence filters, edge filters, longpass and shortpass filters, beam splitters, anti-reflection coatings, optical mirrors and, of course, astronomical filters.

Established in 1999 and based in Kunming City, China, Optolong/Yulong provides nearly 2000 types of optical filter coatings annually to customers worldwide in a wide variety of industries and applications. We invite you to learn more about Optolong/Yulong, their products, facilities, and processes by viewing the short video below:

Filters (1)
2 inch
Clear All
 
FILTER BY

Items 25-28 of 28