Explore Scientific Nebula Filter H-Alpha 2-inch 12nm

The Explore Scientific H Alpha Nebula Filter 2 inch 12 nm is designed for astronomers and astrophotographers who want higher contrast and more detail when observing or imaging emission nebulae. By isolating the hydrogen alpha wavelength and reducing unwanted sky glow, this filter reveals faint nebula structures that are often lost in light pollution. It is especially effective in urban and suburban skies, allowing deep red nebula regions to stand out with clarity and depth.
 
Key Features
• Hydrogen alpha band width of 12 nanometers for enhanced contrast on emission nebulae
• Significantly reduces light pollution and unwanted artificial light from sources like sodium and mercury vapour lamps
• Helps capture faint details in nebulae that are otherwise difficult to detect
• Ideal for astrophotography and visual observing under bright skies
• Fits standard 2 inch eyepiece holders and can be used with adapters for 1.25 inch systems
• Comes with a quality test certificate for confidence and reliability