Collection: 2 Inch Astrophotography Filters

Whether you're observing the Moon, Venus, or splitting double stars, the Optolong ND Filter ensures you get the clearest and most detailed view possible. Crafted from high-quality materials and featuring advanced coating technology, this filter is built to provide exceptional performance and durability.

The Optolong Moon and Skyglow Filter 2" is designed to improve the visibility of celestial objects by reducing the transmission of light pollutants. This filter blocks unwanted light from skyglow and streetlights, darkening the background sky and enhancing the contrast of the Moon, galaxies, nebulae, and globular star clusters. It is particularly effective for both visual observation and astrophotography, making it an essential tool for any astronomer.

Allows you to set the percentage of light attenuation by rotating the top section of the two-piece filter. This flexibility is superior to standard Moon filters, providing precise control over brightness levels. Made with a 2mm thick Schott glass substrate from Germany, ensuring durability and reliability.

By using this filter, you can ensure that only the visible spectrum reaches your camera sensor or eyepiece, resulting in sharper, clearer, and more accurate images. Built with superior materials and advanced coating technology, the Optolong 2" UV/IR Cut Filter is an essential addition to any serious astronomer's kit.

Using the CLS Filter it significantly improves the visibility of deep-sky objects, enhancing the contrast and detail in your observations and photographs. Whether you're using a color CCD camera or an unmodified DSLR, this filter is a must-have for clearer, more detailed views of the cosmos.

The Optolong UHC 2" Light Pollution Filter is designed to improve the visibility of deep-sky objects by selectively reducing the transmission of light pollutants. This filter enhances the contrast and detail of nebulae, galaxies, and star clusters, making them more visible even in areas with significant light pollution. It is particularly effective for astrophotography, allowing you to capture clearer, more detailed images of the night sky.

The filter guarantees 90% transmission at the critical wavelengths of 495.9nm and 500.7nm, providing clear and vivid images of nebulae. It offers 0.1% transmission at 435nm and 578nm for Hg and at 589nm for Na, effectively cutting out unwanted light pollution.

The Optolong IR Pass 685nm Filter 2" is an essential tool for anyone serious about astronomy and astrophotography. Its ability to reduce the effects of atmospheric seeing and improve the visibility of celestial objects makes it invaluable for capturing detailed images of planets and the Moon. Whether you're observing Jupiter's cloud bands, Saturn's rings, or the craters on the Moon, this filter ensures you get the clearest and most accurate view possible.

Over 90% at the center wavelength of 500.7nm and 656.6nm. FWHM of 35nm±5nm for OIII and 15nm±3nm for Ha.

The Optolong H-Beta Filter 2" 25nm is designed to improve the visibility of nebulae by selectively reducing the transmission of light pollutants. This filter blocks unwanted light from skyglow and streetlights, darkening the background sky and enhancing the contrast of nebulae, such as the Horsehead Nebula and the California Nebula. It is particularly effective for both visual observation and astrophotography, making it an essential tool for any astronomer.

The Askar Duo-Band Narrowband Filter is primarily used for capturing and observing emission nebulae, planetary nebulae, and supernova remnants. By isolating the H-alpha and OIII emission lines, this filter enables astronomers and astrophotographers to see and photograph structures within nebulae that are often obscured by other wavelengths of light. This makes it an invaluable tool for anyone conducting detailed studies of these celestial phenomena.

The ZWO 2" Duo-Band Dual Narrowband Filter is a game-changing accessory for astrophotographers and astronomers who want to elevate their imaging capabilities. This filter is designed to complement ZWO's range of color ASI cameras, allowing users to capture stunning images of deep-sky objects with remarkable clarity and contrast.

The Askar H-Alpha Narrowband (7nm) Ha Filter is an essential tool for anyone serious about astronomical observation and astrophotography. Its ability to isolate specific wavelengths and reduce light pollution impact makes it invaluable for capturing stunning images of deep-sky objects.

The Askar OIII Narrowband (7nm) Filter is primarily used for capturing and observing OIII emitting nebulae and supernova remnants. By isolating the OIII emission line, this filter enables astronomers and astrophotographers to see and photograph structures within nebulae that are often obscured by other wavelengths of light. This makes it an invaluable tool for anyone conducting detailed studies of these celestial phenomena.

Perfect for capturing detailed images of SII emitting nebulae, planetary nebulae, and supernova remnants. Designed to mitigate the effects of light pollution, making it suitable for urban and suburban environments.

The Optolong SHO (SII H-Alpha OIII) 6.5nm Filters are essential tools for astrophotographers and astronomers who want to capture stunning images of the night sky. Their ability to isolate specific wavelengths of light and reduce the impact of light pollution makes them invaluable for achieving detailed and high-contrast images of nebulae and other celestial objects. With their high-quality construction and advanced features, these filters will significantly improve your stargazing and imaging experience.

The Optolong H-Alpha 7nm Filter is a powerful tool for any astronomer or astrophotographer looking to capture high-contrast, detailed images of the night sky. With its advanced coating technology, high transmission rates, and durable construction, this filter ensures that you can achieve stunning results in a variety of imaging scenarios. Whether you’re observing from a suburban backyard or a light-polluted urban environment, the H-Alpha filter will help you see the universe in greater detail than ever before.

With its state-of-the-art construction and advanced coating technology, the Optolong OIII Narrowband Filter ensures that you capture the most stunning and clear images of nebulae and other celestial objects.

6.5nm bandwidth centered at 672nm, isolating SII emissions while blocking out unwanted light. 80% transmission at the 672nm SII line, ensuring bright and detailed images.

The Optolong L-Quad Enhance Filter (L-QEF) 2" is a state-of-the-art quad bandpass light pollution suppression filter designed specifically for astrophotography with color cameras. This advanced filter is engineered to significantly reduce the impact of light pollution, allowing you to capture stunning, high-contrast images of celestial objects with enhanced detail and clarity. Whether you are a seasoned astrophotographer or a beginner, the Optolong L-QEF is an indispensable tool for achieving professional-grade results.

The Optolong L-Pro Light Pollution Broadband Filter 2" is a high-performance filter designed for serious astrophotographers and astronomers who want to capture stunning images of the night sky despite the challenges posed by light pollution. This filter selectively reduces the transmission of wavelengths from common light pollutants, allowing you to see and photograph deep-sky objects with greater clarity and detail.

The Antlia Triband RGB Ultra Filter is primarily used for astrophotography and visual observation, particularly in light-polluted areas. It is designed to capture detailed and high-contrast images of deep-sky objects such as emission nebulae, galaxies, reflection nebulae, and star clusters. By isolating specific wavelengths and enhancing the quantum efficiency of the blue channel, the filter ensures balanced RGB colors and high-quality images.

ectively isolates the H-alpha, H-beta, and Oxygen III nebula emission lines, achieving a maximum transmission of up to 90%. Designed to combat the effects of light pollution from urban and suburban areas, ensuring clear and detailed images. Over 90% transmittance of key nebula emission lines for bright and vibrant images.

The Optolong LRGB 2 Inch Filter Set Kit is used to improve the quality of astronomical images by separating the light spectrum into its primary components. This allows for detailed and accurate color representation in both deep-sky and planetary imaging. By blocking unwanted light pollution and infrared wavelengths, these filters enhance the visibility of celestial objects and improve the overall image quality.