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Optolong OIII Filter 2 Inch 18nm
The filter substrate is fine-optically polished to 1/4 wave with less than 30 parallelism over both surfaces. This ensures minimal light scatter and superior image clarity. Complying with the MIL-O-13830 standard, the filter boasts a surface quality of 60/40, which translates to exceptional durability and performance.Regular price $158.00 USDRegular priceUnit price per -
Askar Duo-Band Narrowband Filter 2" / 1.25"
The Askar Duo-Band Narrowband Filter 2" / 1.25" is a revolutionary accessory for astrophotographers seeking to capture the intricate beauty of deep-sky objects. Designed with two passbands, this filter isolates the H-alpha and OIII emission lines, making it an excellent choice for imaging emission nebulae, planetary nebulae, and supernova remnants.Regular price From $189.00 USDRegular priceUnit price per -
Optolong 2" H-Beta Filter 25nm
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.Regular price $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"
Astrophotography enthusiasts seeking to capture the mesmerizing beauty of deep-sky objects will find the Optolong SHO (SII H-Alpha OIII) 6.5nm Filters an invaluable addition to their toolkit. Available in both 2" and 1.25" sizes, these narrowband filters are specifically designed to isolate the key emission lines of Sulfur II (SII), Hydrogen-Alpha (H-Alpha), and Oxygen III (OIII).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 2" Inch H-Alpha Filter
he filter ensures sharp, high-contrast images by isolating the H-alpha emission line. Effectively cuts through light pollution, making it possible to observe and photograph nebulae even in urban areas.Regular price $279.00 USDRegular priceUnit price per -
Optolong SII Filter 2 Inch 6.5nm
The Optolong SII Filter 2 Inch 6.5nm is a premier choice for astronomers and astrophotographers looking to capture the intricate details of deep-sky objects. This narrowband filter is specifically designed to isolate the Sulfur II (SII) emission line at 672nm, significantly enhancing the contrast and visibility of nebulae and other celestial phenomena. With its advanced features and high-quality construction, the Optolong SII Filter ensures that you can achieve stunning, high-contrast images with unparalleled clarity.Regular price $279.00 USDRegular priceUnit price per -
Optolong 2" OIII 6.5nm Filter
The filter blocks infrared wavelengths from 700nm to 1100nm, eliminating the need for a separate IR-Cut filter. Precision Polishing: The filter substrate is fine-optically polished to 1/4 wave with less than 30 parallelism over both surfaces, ensuring superior image quality. Made from 2mm thick Schott B260 optical glass substrate, the filter offers excellent durability and reliability.Regular price $279.00 USDRegular priceUnit price per -
ZWO 2" OIII Narrowband Filter 7nm
Purchasing the ZWO 2" OIII Narrowband Filter 7nm is a smart investment for any serious astronomer or astrophotographer. Its ability to isolate specific wavelengths of light and reduce the impact of light pollution makes it an essential tool for capturing stunning images of nebulas.Regular price $299.00 USDRegular priceUnit price per -
ZWO 2" H-Alpha Ha Filter 7nm
The ZWO 2" H-Alpha Ha Filter 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 $299.00 USDRegular priceUnit price per -
ZWO 2" SII Filter 7nm
Perfect for capturing detailed and high-contrast images of emission nebulae. Essential for taking stunning astrophotographs that highlight the intricate structures of celestial objects.Regular price $299.00 USDRegular priceUnit price per -
ZWO SHO 2" Inch Filter Set Kit (Ha SII OIII) Narrowband 7nm
Investing in the ZWO SHO 2" Inch Filter Set Kit (Ha SII OIII) Narrowband 7nm means achieving professional-grade astrophotography results. Their superior construction, light pollution suppression capabilities, and compatibility with a wide range of equipment make them invaluable for capturing the beauty of the night sky in vivid detail.Regular price From $299.00 USDRegular priceUnit price per
