Omegon Pro CLS Light pollution filter 2 inch

Omegon Pro CLS Light Pollution Filter 2 inch: targeted suppression of city light

CLS stands for City Light Suppression. This filter suppresses the most common forms of artificial lighting, including high-pressure sodium lamps and mercury vapor lighting, thereby tackling a broader portion of the interfering spectrum than a standard broadband filter.

The light from emission nebulae around the H-beta and OIII lines is preserved. As a result, the pale glow of the sky background largely disappears, while nebulae, star clusters, and galaxy structures become more contrasted. The filter barely dims the image, so telescopes starting from approximately 70 mm also benefit.

Features

• Interference filter against sodium and mercury lighting
• Retains the H-beta and OIII emission lines
• Limited light loss, also usable on smaller telescopes
• Anodized aluminum mount with 2-inch thread

Compatibility

Suitable for 2-inch eyepieces and for photographic light paths. For a 1.25-inch light path, the 1.25-inch UHC is the standard counterpart.

Specifications

You can find more accessories for this merk at the Omegon merk Page.