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Optolong OIII 18nm Filter 1.25"
Optimized for specific wavelengths, it offers 90% transmission at 495.9 nm and 500.7 nm, critical for viewing ionized oxygen in nebular regions. The filter significantly cuts out unwanted light with only 0.1% transmission at certain wavelengths, further clarifying your celestial observations.Regular price $128.00 USDRegular priceUnit price per -
Optolong H-Beta 25nm Filter 1.25"
Perfect for capturing detailed images of faint and elusive nebulae, such as the Horsehead Nebula and the California Nebula. Enhances the contrast and visibility of nebulae against the night sky, making them more prominent during visual observation.Regular price $140.00 USDRegular priceUnit price per -
ZWO H-Alpha Ha Narrowband Filter 1.25" 7nm
The ZWO H-Alpha Ha Narrowband Filter 1.25" 7nm is primarily used for capturing and observing emission nebulae. By isolating the H-alpha emission line, this filter enables astronomers and astrophotographers to see and photograph structures within nebulae that are often obscured by other wavelengths of light.Regular price $179.00 USDRegular priceUnit price per -
ZWO OIII Narrowband Filter 1.25" (7nm)
It effectively blocks all other light, providing clear and detailed views of nebulae and other celestial objects. Whether you are dealing with light pollution or seeking to enhance the contrast and detail of your images, the ZWO OIII Narrowband Filter is an essential tool for any serious astronomer or astrophotographer.Regular price $179.00 USDRegular priceUnit price per -
ZWO SII Narrowband Filter 1.25" Inch (7nm)
By blocking out unwanted light pollution and skyglow, the ZWO SII Narrowband Filter enhances the visibility of celestial objects, making it an indispensable addition to your astrophotography equipment.Regular price $179.00 USDRegular priceUnit price per -
Askar Duo-Band Narrowband Filter 2" / 1.25"
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.Regular price From $189.00 USDRegular priceUnit price per -
Askar SII Narrowband (7nm) Filter 2" / 1.25" / 36mm / 31mm
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.Regular price From $199.00 USDRegular priceUnit price per -
Optolong SHO (SII H-Alpha OIII) Filters 2" / 1.25"
Perfect for capturing intricate details of nebulae and other celestial objects rich in sulfur, hydrogen, and oxygen emissions. Effectively reduces the impact of light pollution, making it suitable for use in light-polluted urban environments.Regular price From $205.00 USDRegular priceUnit price per -
Optolong H-Alpha 7nm Filter 2" / 1.25"
Achieve high-contrast, detailed images of hydrogen-rich nebulae and other celestial objects. Blocks out artificial light pollution, improving image clarity and detail.Regular price From $209.00 USDRegular priceUnit price per -
Optolong SII Narrowband 6.5nm Filter 2" / 1.25"
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.Regular price From $209.00 USDRegular priceUnit price per -
Optolong OIII Narrowband 6.5nm Filter 2" / 1.25"
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.Regular price From $209.00 USDRegular priceUnit price per -
Optolong OIII 6.5nm Filter 1.25"
The Optolong OIII 6.5nm Filter 1.25" is a must-have tool for astronomers and astrophotographers who are serious about capturing the most detailed and clear images of the night sky. Designed specifically for deep-sky observation and imaging, this narrowband filter isolates the Oxygen III (OIII) emission line at 500nm, significantly enhancing the contrast and visibility of celestial objectsRegular price $209.00 USDRegular priceUnit price per
