Baader Moon & Skyglow 2 inch Filter

The Baader Moon & Skyglow 2" filter is a premium light pollution reduction filter designed for visual observation of the Moon, planets, and deep-sky objects under light-polluted skies. It effectively reduces skyglow from mercury and sodium vapor lamps while enhancing contrast on celestial targets.

Advantages

This filter significantly improves contrast and detail on lunar, planetary, and deep-sky objects by selectively blocking artificial light pollution wavelengths. The advanced Baader Phantom Group Coatings ensure high transmission, durability, and scratch resistance. Its parfocal design allows seamless use with other Baader filters without refocusing.

Suitable for

• Visual observation of the Moon, planets, and deep-sky objects
• Use under light-polluted skies
• Compatible with 2" eyepieces, diagonals, and camera adapters

Key specifications

• Filter Type: Light Pollution / Moon & Skyglow
• Filter Size: 2 inch (50.8mm)
• Thread Standard: M48 x 0.75 (Standard 2" filter thread)
• Optical Substrate: Fine-optically polished glass
• Coating Technology: Baader Phantom Group Coatings (multi-layer dielectric)
• Clear Aperture: Approximately 46mm
• Filter Cell Material: Black anodized aluminum
• Edge Blackening: Yes, for maximum contrast and stray light reduction
• Parfocal Design: Yes
• Storage: Supplied in a protective filter case

Recommendations

For optimal results, use this filter in combination with other Baader filters for a complete observation setup. The filter is designed to be parfocal, making it easy to switch between filters without adjusting focus.