Omegon Pro CLS Filter 2 inch: Keeping nebulae visible in the city
The Omegon Pro CLS filter makes nebulae and star clusters visible in places where artificial light normally washes them out. It blocks the interfering part of the spectrum, thereby increasing the contrast between the object and the background.



Bright image without significant light loss
Many filters enhance contrast by blocking a lot of light, resulting in a dark image. This filter hardly dims the object, allowing you to maintain a bright and natural image through the eyepiece while contrast increases. As a result, even telescopes starting from 70 mm still show a clear difference.
Interference Engineering
The coating only transmits the wavelengths that are relevant for nebula observation. Less stray light means a cleaner image, which also makes the filter usable for photography from light-polluted environments.
Featured accessories
Fits 2-inch eyepieces and 2-inch adapters. In combination with a filter wheel, you can quickly switch between this filter and your narrowband filters.
For whom yes and for whom no
- ✓ Observers in or near the city
- ✓ Owners of small to medium-sized telescopes
- ✓ Who works both visually and photographically
- ✗ Those looking for the sharpest contrast gain on planetary nebulae: that is OIII
- Observers under a truly dark sky
Specifications
| Type | CLS interference filter |
| Mount | 2 inches |
| Material mount | Anodized aluminum |
| Observation goals | Visual and photographic |
| Recommended opening | From approximately 70 mm |
You can find more accessories for this merk at the Omegon merk Page.





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