Nebula Filter Oxygen III 1.25-inch 6.5nm

Capture Clear Nebula Photos Despite Urban Light Pollution

Struggling with light pollution in astrophotography? The O-III Filter enhances nebula details without interference, giving you sharp, professional-quality images from the city.

Features

• 6.5 nm Narrow Passband: Filters only the oxygen emission lines at 496 and 501 nm, blocking nearly all artificial light and improving contrast.
• 1.25-Inch Compatibility: Designed specifically for telescopes using 1.25-inch eyepieces, ideal for smaller or compact telescope setups.
• Perfect for Light-Polluted Skies: Optimized for urban and suburban astronomers facing significant light pollution, allowing detailed views of emission nebulae.
• Enhances Deep-Sky Object Visibility: Reveals faint nebulae, like the Cirrus Nebula (NGC 6992), that would otherwise be invisible in bright skies.
• Premium Quality with Individual Test Report: Each filter is tested and comes with a unique report, ensuring top performance and reliability.
• Improves Astrophotography: Ideal for astrophotographers looking to capture high-contrast, sharp images of nebulae and other emission-line objects, even in city environments.

The Nebula Filter Oxygen III 1.25-inch is for you if…

• You struggle with light pollution and want clearer views of nebulae and other deep-sky objects without needing to leave the city.
• You use a smaller telescope (with 1.25-inch eyepieces) and are looking for a powerful filter to maximize its performance.
• You’re an astrophotographer who wants sharper, high-contrast images of nebulae despite light-polluted urban conditions.
• You’re on a budget but still want to enhance the quality of your deep-sky observations without purchasing a more expensive, larger telescope.
• You want a tested, reliable filter that includes an individual quality assurance report to ensure you’re getting premium results from your investment.

If you’re passionate about deep-sky astronomy but find light pollution constantly ruining your view, the Nebula Filter Oxygen III 1.25-inch 6.5nm is the solution you’ve been waiting for. Specifically designed for telescopes using 1.25-inch eyepieces, this premium filter isolates the critical oxygen emission lines at 496 and 501 nm, blocking almost all other light sources—including artificial light from street lamps and city glow. This means you’ll be able to observe faint emission nebulae, supernova remnants, and other deep-sky objects that are otherwise invisible in light-polluted skies, even with a compact telescope.

Take the Cirrus Nebula (NGC 6992) as an example. Without a filter, this object is barely visible in a 200 mm telescope under bright urban skies. But with the Nebula Filter Oxygen III, the foggy structures and intricate details of the nebula become strikingly clear, giving you a level of visibility that rivals dark-sky conditions—all from your own backyard. The filter’s 6.5 nm narrow passband ensures that only the oxygen emission lines pass through, enhancing the contrast and detail of nebulae while absorbing nearly all artificial light interference.

For astrophotographers, this filter is a game-changer. Whether you’re using a camera attachment or a telescope with 1.25-inch eyepieces, the O-III filter significantly improves the clarity of your long-exposure images, allowing you to capture high-contrast, detailed photos of emission nebulae even in light-polluted environments. By filtering out the unwanted wavelengths of artificial light, it enables sharper, more defined images, eliminating the need for expensive trips to dark-sky locations. And with an individual test report included with each filter, you’re guaranteed a product that delivers on its promises, ensuring high performance and reliability.

This filter is the perfect solution for astronomers who are looking for a powerful upgrade without breaking the bank. Instead of spending thousands on a larger telescope, the Nebula Filter Oxygen III maximizes the performance of your current setup, making it ideal for budget-conscious astronomers. If you’ve been struggling to see the detailed structure of deep-sky nebulae or capture clear astrophotography in a light-polluted environment, this filter will transform your experience and reveal the hidden beauty of the night sky.