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Optolong OIII Filter 2 Inch 18nm
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.Regular price $158.00 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 -
Optolong 2" H-Beta Filter 25nm
The filter allows 25nm bandwidth of light centered on the 486nm wavelength, providing bright and clear images of nebulae. Reduces the transmission of artificial light from mercury vapor and sodium vapor lights, as well as natural skyglow caused by neutral oxygen emission.Regular price $189.00 USDRegular priceUnit price per -
Askar SII Narrowband (7nm) Filter 2" / 1.25" / 36mm / 31mm
The Askar SII Narrowband (7nm) Filter is primarily used for capturing and observing SII emitting nebulae and supernova remnants. By isolating the SII 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.Regular price From $199.00 USDRegular priceUnit price per -
Optolong SHO (SII H-Alpha OIII) Filters 2" / 1.25"
Each filter isolates a 6.5nm bandwidth centered at its respective emission line, ensuring high contrast and detailed images. SII and OIII filters offer 80% transmission at their designated wavelengths, while the H-Alpha filter provides over 85% transmission.Regular price From $205.00 USDRegular priceUnit price per -
Optolong H-Alpha 7nm Filter 2" / 1.25"
Transform your astronomical observations and astrophotography with the Optolong H-Alpha 7nm Filter. Order now to enjoy clear, high-contrast images of nebulae and other celestial objects, capturing the beauty of the universe in unprecedented detail. Click the link below to add this essential tool to your collection today.Regular price From $209.00 USDRegular priceUnit price per -
Optolong SII Narrowband 6.5nm Filter 2" / 1.25"
Ideal for capturing detailed images of sulfur-rich nebulae and other celestial objects. Effectively reduces the impact of light pollution, making it suitable for use in urban environments. Works seamlessly with other narrowband filters like H-Alpha and OIII for comprehensive SHO (Hubble Palette) imaging.Regular price From $209.00 USDRegular priceUnit price per -
Optolong OIII Narrowband 6.5nm Filter 2" / 1.25"
6.5nm bandwidth centered at 500nm, isolating OIII emissions while blocking out unwanted light. 80% transmission at the 500nm OIII line, ensuring bright and detailed images.Regular price From $209.00 USDRegular priceUnit price per -
Optolong 2" Inch H-Alpha Filter
The Optolong H-Alpha 7nm Filter 2 Inch is a crucial addition to the arsenal of any serious astronomer or astrophotographer. Designed to isolate the H-alpha emission line at 656nm, this filter significantly improves the contrast and detail of nebulae and other deep-sky objects. Whether you are capturing wide-field images of the night sky or focusing on specific celestial bodies, this filter ensures superior performance by cutting out unwanted light pollution and emphasizing the H-alpha spectral line.Regular price $279.00 USDRegular priceUnit price per -
Optolong SII Filter 2 Inch 6.5nm
The Optolong SII Filter 2 Inch 6.5nm is designed to isolate the Sulfur II (SII) emission line at 672nm, significantly enhancing the contrast and visibility of deep-sky objects. By blocking unwanted wavelengths, including those from light pollution, this filter ensures that you can capture clear and detailed images of nebulae, supernova remnants, and other emission line objects.Regular price $279.00 USDRegular priceUnit price per -
Optolong 2" OIII 6.5nm Filter
Features multiple layers of anti-reflection coatings, applied via electron-beam gun evaporation with ion-assisted deposition, for enhanced durability and scratch resistance. The CNC machined, black anodized aero-metal filter cell is lightweight yet strong, providing a clear aperture of 26mm.Regular price $279.00 USDRegular priceUnit price per -
ZWO 2" OIII Narrowband Filter 7nm
The ZWO 2" OIII Narrowband Filter 7nm 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 nebula images.Regular price $299.00 USDRegular priceUnit price per -
ZWO 2" H-Alpha Ha 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 2" SII Filter 7nm
The ZWO 2" Narrowband SII Filter 7nm is a top-tier optical accessory designed for astrophotographers and astronomers who aim to capture the intricate beauty of the night sky. This narrowband filter is specifically crafted to isolate the SII (Sulfur II) emission line, making it possible to photograph stunning celestial objects even under light-polluted skies.Regular price $299.00 USDRegular priceUnit price per -
ZWO SHO 2" Inch Filter Set Kit (Ha SII OIII) Narrowband 7nm
The ZWO SHO 2" Inch Filter Set Kit (Ha SII OIII) Narrowband 7nm offers a range of options to suit different astrophotography needs. You can select the Ha 7nm 2inch filter, which is perfect for capturing the rich details of hydrogen-alpha emitting nebulae with a narrow 7nm bandpass centered on 656nm.Regular price From $299.00 USDRegular priceUnit price per
