Omegon Filters Pro 2 inch UHC filter

Omegon Pro 2-inch UHC filter is a high-quality narrow-band filter designed for visual deep-sky observations from light-polluted areas. UHC stands for Ultra High Contrast - and that is exactly what this filter delivers on objects such as the Orion Nebula, Veil Nebula and Lagoon Nebula.

The filter allows only light from specific emission lines, such as OIII (doubly ionized oxygen) and H-beta (hydrogen), to pass through, while virtually blocking interfering artificial light from sodium and mercury lamps. This results in a deeper background sky and brighter, better-defined nebula structures. Even in dark locations, the filter provides additional contrast.

This 2″ version is suitable for larger eyepieces and photographic applications where a wider light path is desired. The aluminum mount is fine threaded and the glass optics are multi-coated for maximum light transmission in appropriate bands, with minimal reflections.

Advantages
✓ Spectacular contrast in emission nebulae
✓ Blocks disturbing light pollution from street lights
✓ High quality 2″ design - ideal for larger eyepieces or filter wheels
✓ Multi-coated glass - low reflection and color neutral
✓ Optimal for telescopes from 150 mm aperture upwards

Specifications

• Type: UHC filter (Ultra High Contrast).
• Connection: 2 inches (50.8 mm)
• Mounting: Aluminum with fine thread
• Coating: Multiple anti-reflective
• Filter operation: Blocks broad spectrum city light, allows OIII and H-beta through
• Application: Visual deep-sky observation, possibly photography
• Not suitable for: Planetary observation or broadband use

Observation goals
The Omegon Pro UHC Nebula Filter 2″ is the perfect choice for deep-sky object enthusiasts observing with larger telescopes or using 2″ eyepieces. Emission nebulae light up against a black background - even from urban settings. An indispensable tool for those who want to get the most out of their observing sessions.