Optolong 2" CLS Filter

Optolong 2" CLS Filter1. Optolong CLS Introduction The 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).

thanks to the rubber eyecups and long eye relief of 29mm

The Sky-Watcher AZEQ6 GO-TO Mount is the ultimate mount for the professional astrophotographer who wants a solid and reliable solution with a payload of up to 20kg

along with 100 cover glasses that are 18mm x 18mm and 0

60 hours - Low

offering users verified performance data for confidence in the field

7 Highest Practical Magnification 300X Light gathering power (compared to the unaided eye) 459 Focuser Diameter 2″ Recommended Usage Viewing Moon and Planets Observing Deep Sky Objects

Pixel Size: 2µm

With its large 50mm aperture

folding eyecup with M43 thread

5 years Sky-Watcher limited warranty

ensuring superior performance in the darkest nights

anti-friction non-slip rubber armored body